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A Deburring Tool

Abstract: “A DEBURRING TOOL” ABSTRACT Present disclosure discloses a deburring tool (100). The tool includes a tool body (1) with a first end (2) and a second end (4) with a plurality of slots (8). At least one blade (6) is disposed within the plurality of slots (8). A cover member (5) defined with plurality of holes covers the second end 5 (4). Each of the plurality of holes (10) receives a primary fastener. The primary fastener contacts and secures the at least one blade (6) within each of the plurality of slots (8). This configuration of the deburring tool facilitates direct contact between the fasteners and the blades ensuring effective fastening of the blades within the tool body and also provides feedback from the primary fastener to an operator about sufficient tightening of the blades. Also, parallel fastening of the primary 10 fastener enables safe tightening and loosening of the blades. Fig. 1 is the representative figure.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
29 September 2023
Publication Number
14/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

TATA MOTORS LIMITED
Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai - 400 001, Maharashtra, India

Inventors

1. Swanand Joshi
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
2. Mukund Limaye
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
3. Dhananjay Mahajan
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
4. Dhiraj Sawant
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
5. Dadasaheb Garje
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
6. Sandeep Ahire
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
7. Shrihari Pimparkar
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
8. Umesh Bhosale
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India
9. Abhijit Dhole
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra India

Specification

FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10; rule 13] TITLE: “A DEBURRING TOOL”
Name and Address of the Applicant:
TATA MOTORS LIMITED of Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai - 400 001 Maharashtra, India.
Nationality: Indian
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
Present disclosure, in general, relates to a field of machining. Particularly, but not exclusively, the present disclosure relates to a deburring tool used for performing deburring operations.
BACKGROUND OF THE DISCLOSURE
Generally, in manufacturing industries, machining processes are used to remove excess material from a work piece to obtain a finished product. Typically machining processes involve turning, milling, grinding, drilling, boring, deburring and the like. Specifically, deburring process employs cutting, grinding, milling or brushing tools to remove burrs through direct contact of the tool with the workpiece. Generally, the deburring tool includes a body portion and a plurality of blades fixed within the body portion. The blades may be positioned in the body portion such that the blades extend perpendicular to a central axis of the body portion.
Conventionally available deburring tools include provisions which are defined adjacent to the blades to receive fasteners. The fasteners are adapted to protrude through the provisions to secure the blades within the body portion. As the provisions are located adjacent to the blades which is perpendicular to the central axis of the body portion, complex internal construction is required to fit the fasteners within the provisions for securing the blades. The complex constructions includes metal ball arrangement which is displaced by fasteners protruding into the provisions. This configuration of fastening the blades is prone to failure, as an operator does not receive feedback from the fastener about sufficient tightening of the blades, which is undesired, since insufficient tightening of the blades leads to hazardous operation of the deburring tool.
Further, as the provisions for receiving the fastener are located adjacent to the blades which is perpendicular to the central axis of the body portion, fastening and unfastening of the blades is cumbersome. The hands of the operator may come in contact with the blades during fastening and unfastening operations that leads to injury, which is again undesired.
Present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the known arts.
SUMMARY OF THE DISCLOSURE

One or more shortcomings of the prior art are overcome by a configuration of a deburring tool as claimed and additional advantages are provided through the deburring tool as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
In one non-limiting embodiment, a deburring tool is disclosed. The deburring tool includes a tool body which is defined with a first end and a second end. The second end of the tool body is defined with a plurality of slots. Further, the deburring tool includes at least one blade which is disposed within each of the plurality of slots, such that, a portion of the at least one blade projects out of the tool body. Furthermore, the deburring tool includes a cover member which is adapted to cover the second end. The cover member is defined with a plurality of holes, where each of the plurality of holes are adapted to receive a primary fastener. The primary fastener received within each of the plurality of holes, contacts and secures the at least one blade within each of the plurality of slots. This configuration of the deburring tool facilitates direct contact between the fasteners and the blades thereby ensuring effective fastening of the blades within the tool body. Additionally, the configuration of fastening the cover member and the at least one blades by direct contact with the primary fastener provides feedback from the primary fastener to an operator about sufficient tightening of the blades.
In an embodiment, the tool body is defined with a shank at the first end. The shank is adapted to be received by a deburring machine.
In an embodiment, the deburring tool includes at least one pad which is disposed in the each of the plurality of slots. The at least one pad is adapted to support the at least one blade within a corresponding slot of the plurality of slots.
In an embodiment, each of the plurality of slots extend between a central axis of the tool body and the periphery of the tool body.
In an embodiment, the plurality of holes are defined such that they align along a length of each of the plurality of slots upon engaging the cover member with the second end of the tool body.

In an embodiment, the primary fastener contacts the at least one blade perpendicularly to secure the at least one blade within the plurality of slots.
In an embodiment, the cover member is defined with a plurality of through provisions, which are configured to receive a secondary fastener and lock the cover member with the second end of the tool body.
In an embodiment, the second end of the tool body is defined with a plurality of receiving portions. The plurality of receiving portions are configured to receive the secondary fasteners from the plurality of through provisions.
In an embodiment, the plurality of holes are aligned parallel to the central axis of the tool body and perpendicular to the plurality of slots.
In an embodiment, the plurality of holes, the plurality of through provisions and the plurality of receiving portions are defined with internal threads to receive the primary fastener and the secondary fastener.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The novel features and characteristics of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiments when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:

Fig. 1 illustrates a perspective view of a deburring tool, according to an embodiment of the present disclosure.
Fig. 2 illustrates a perspective view of a tool body defined with a plurality of slots, according to an embodiment of the present disclosure.
Fig. 3 illustrates a perspective view of the tool body accommodating a plurality of blades within the plurality of slots, according to an embodiment of the present disclosure.
Fig. 4 illustrates a perspective view a cover member, according to an embodiment of the present disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the system and method illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which forms the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that, the conception and specific embodiments disclosed may be readily utilized as a basis for modifying other devices, assemblies, system, methods and processes for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that, such equivalent construction do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristics of the disclosure, to its construction and features, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.

In the present document, the word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or implementation of the present subject matter described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non¬exclusive inclusions, such that a device or a system or a method that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such device, assembly, system or method. In other words, one or more elements in a device or an assembly or a system or a method proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the device or system or method.
Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals have been used to refer to the same or like parts. The following paragraphs describe the present disclosure with reference to Figs. 1-4.
Fig. 1 illustrates a perspective view of a deburring tool (100). In an embodiment, the deburring tool (100) may be employed for machining operations, particularly, the deburring tool (100) may be employed to remove excess material from edges or surface of a work piece. The deburring tool (100) may be fixed to a machine for carrying out the deburring operations. In an embodiment, the deburring tool (100) may be employed to carry out any other machining operations such as but not limited to cutting, turning, milling, grinding, drilling, boring and the like. The deburring tool (100) may include a tool body (1) which may be defined with a first end (2) and a second end (4). In an embodiment, the tool body (1) may be an elongated structure which may be defined with a shape including but not limited to cylindrical, conical, rectangular and the like. Further, in an

embodiment, the tool body (1) may be defined with multiple sections having different cross-sectional area and different shapes for each section.
Further, as seen in Fig. 1, the tool body (1) may be defined with a shank (3) at the first end (2). In an embodiment, the shank (3) may be adapted to be received by a deburring machine [not shown in Figs.]. As seen in Fig. 2, the second end (4) of the tool body (1) may be defined with a plurality of slots (8). Each of the plurality of slots (8) may be adapted to accommodate at least one blade
(6) which may be employed for deburring operation. In an illustrative embodiment, the second end
(4) of the tool body (1) is defined with four slots (8), however, this should not be considered as a
limitation as the tool body (1) may include less than or more than four slots (8). In an embodiment,
each of the plurality of slots (8) may extend between a central axis (A-A) of the tool body (1) and
a periphery of the tool body (1). The number of the plurality of slots (8) and the angle between
each of the plurality of slots (8) may be determined based on the deburring operations to be carried
out by the deburring tool (100). In an embodiment, the plurality of slots (8) may be defined with a
predefined depth based on the size of the at least one blade (6) which may be accommodated within
the plurality of slots (8). Further, the plurality of slots (8) may be defined with a predetermined
shape which may be selected based on the shape and size of the at least one blade (6) to be
accommodated.
Referring now to Fig. 3, the at least one blade (6) disposed within each of the plurality of slots (8) may extend out of the plurality of slots (8). That is, a portion of the at least one blade (6) may project out of the tool body (1) such that an edge of the at least one blade (6) may be utilized for performing deburring operations. Further, the deburring tool (100) may include at least one pad
(7) which may be disposed in the each of the plurality of slots (8). The at least one pad (7) may be
adapted to support the at least one blade (6) within a corresponding slot of the plurality of slots
(8). In an embodiment, the at least one pad (7) may enable snug fitting of the at least one blade (6)
within each of the plurality of slots (8). Further, the at least one pad (7) may be utilized to adjust
the position of the at least one blade (6) within each of the plurality of slots (8). For example, the
at least one blade (6) having different dimensions may be accommodated within the plurality of
slot by positioning the at least one pad (7) below the at least one blade (6). In an illustrated
embodiment, each of the plurality of slots (8) are provided with one pad (7), however, this should
not be considered as a limitation as the deburring tool (100) may include more than one pad (7)

within each of the plurality of slots (8) based on dimensional requirement of the at least one blade (6). Further, in an embodiment, the at least one pad (7) may be made of a material which may include but not limited to a polymer, a metal and a metal alloy, which may be capable of supporting the at least one blade (6) within the plurality of slots (8).
Referring now to Figs. 1 and 4, the deburring tool (100) may include a cover member (5). The cover member (5) may be removably fixed to the second end (4) [as seen in Fig. 1] of the tool body (1) and may be adapted to cover the second end (4) and the plurality of slots (8). Further, the cover member (5) may be adapted to cover the at least one blade (6) accommodated within the plurality of slots (8). The cover member (5) aids in securing the at least one blade (6) within the plurality of slots (8) and enables rigid fixing of the at least one blade (6) for deburring operations. In an embodiment, the cover member (5) may be defined with a shape which may correspond to the shape of the second end (4) of the tool body (1). Further, as apparent from Fig. 4, the cover member (5) may be defined with a plurality of holes (10). Each of the plurality of holes (10) may be configured to receive a primary fastener [not shown in Figs]. The primary fastener may be adapted to contact and secure the at least one blade (6) within each of the plurality of slots (8). This configuration of the plurality of holes (10) which facilitate direct contact between the primary fastener and the at least one blade (6) ensure that an operator fastening the primary fastener may receive tightening feedback for determining rigid fastening of the at least one blade (6) within the plurality of slots (8). Additionally, the direct contact between the primary fastener and the at least one blade (6) facilitates rigid fastening of the at least one blade (6) thereby mitigating slip or misalignment of the at least one blade (6) during deburring operation.
The plurality of holes (10) may be defined in the cover member (5) such that, the plurality of holes (10) align with corresponding slots of the plurality of slots (8) upon engaging the cover member
(5) with the second end (4) of the tool body (1). The plurality of holes (10) may be aligned parallel to the central axis (A-A) of the tool body (1) and may be in a direction which may be perpendicular to the plurality of slots (8). The primary fastener may be adapted to contact the at least one blade
(6) perpendicularly upon being fastened within the plurality of holes (10) to secure the at least one blade (6) within the plurality of slots (8). This configuration of the cover member (5) enabling fastening of the primary fastener parallel to the central axis (A-A) of the tool body (1) enables safe

fastening and unfastening of the at least one blade (6) as the chance of the operators hand coming in contact with the at least one blade (6) is mitigated.
Furthermore, as seen in Fig. 4, the cover member (5) may be defined with a plurality of through provisions (11). The plurality of through provisions (11) may be configured to receive a secondary fastener [not shown in Figs.]. The secondary fastener received within the plurality of through provisions (11) may lock the cover member (5) with the second end (4) of the tool body (1). In an embodiment, the second end (4) of the tool body (1) may be defined with a plurality of receiving portions (9) [as seen in Fig. 2]. The plurality of receiving portions (9) may be configured to receive the secondary fasteners from the plurality of through provisions (11). In an embodiment, each of the plurality of receiving portions (9) may be aligned with each of the plurality of through provisions (11) such that the secondary fastener received within the each of the plurality of through provisions (11) may be fastened into the corresponding receiving portion (9) of the plurality of receiving portions (9).
In an embodiment, the primary fastener and the second fastener may be at least one of a screw, a bolt, a rivet and the like which are capable of fastening two or more objects.
In an embodiment, the plurality of holes (10), the plurality of through provisions (11) and the plurality of receiving portions (9) may be defined with internal threads [not shown in Figs.] to receive the primary fastener and the secondary fastener. The internal threads defined in the plurality of holes (10) may be configured to mesh with the threads that may be defined on the primary fasteners. Further, the internal threads defined in the plurality of through provisions (11) and the plurality of receiving portions (9) may be configured to mesh with the threads that may be defined on the secondary fasteners.
It should be noted that in an exemplary embodiment, as seen in the Figs. 1-4 the features, construction, position and connections should not be construed as a limitation as the deburring tool (100) may include any other type of features, construction, position, and connections which may work with other combinations.
In an embodiment, the deburring tool (100) is simple in construction and easy to manufacture. Further, the construction of the deburring tool (100) enables easy assembly and disassembly of the

at least one blade (6) for maintenance or other operations. Additionally, the assembly of the deburring tool (100) having of the cover member (5) enabling fastening of the primary fastener parallel to the central axis (A-A) of the tool body (1) enables safe fastening and unfastening of the at least one blade (6) as the chance of the operators hand coming in contact with the at least one blade (6) is mitigated, thereby preventing harm to the operator. Further, the configuration of the plurality of holes (10) which facilitate direct contact between the primary fastener and the at least one blade (6) ensure that an operator fastening the primary fastener may receive tightening feedback for determining rigid fastening of the at least one blade (6) within the plurality of slots (8). The direct contact between the primary fastener and the at least one blade (6) facilitates rigid fastening of the at least one blade (6) thereby mitigating slip or misalignment of the at least one blade (6) during deburring operation.
It should be imperative that the deburring tool and any other elements or features described in the above detailed description should not be considered as a limitation with respect to the figures. Rather, variation to such device and system should be considered within the scope of the detailed description.
Equivalents:
With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory

phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments

disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope.

Referral Numerals:

Reference Number Description
100 Deburring tool
1 Tool body
2 First end
3 Shank
4 Second end
5 Cover member
6 Blade
7 Pad
8 Slots
9 Receiving portion
10 Holes
11 Through provisions

We Claim:
1. A deburring tool (100), comprising:
a tool body (1) defined with a first end (2) and a second end (4), wherein the second end (4) is defined with a plurality of slots (8);
at least one blade (6) being disposed within each of the plurality of slots (8), wherein a portion of the at least one blade (6) projects out of the tool body (1); and
a cover member (5) being adapted to cover the second end (4), wherein the cover member (5) is defined with a plurality of holes (10), each of the plurality of holes (10) receive a primary fastener, the primary fastener contacts and secures the at least one blade (6) within each of the plurality of slots (8).
2. The deburring tool (100) as claimed in claim 1, wherein the tool body (1) is defined with a shank (3) at the first end (2), the shank (3) is adapted to be received by a deburring machine.
3. The deburring tool (100) as claimed in claim 1, comprising at least one pad (7) disposed in the each of the plurality of slots (8) to support the at least one blade (6) within a corresponding slot of the plurality of slots (8).
4. The deburring tool (100) as claimed in claim 1, wherein each of the plurality of slots (8) extend between a central axis (A-A) of the tool body (1) and the periphery of the tool body (1).
5. The deburring tool (100) as claimed in claim 1, wherein the plurality of holes (10) align along a length of each of the plurality of slots (8) upon engaging the cover member (5) with the second end (4) of the tool body (1).
6. The deburring tool (100) as claimed in claim 1, wherein the primary fastener contacts the at least one blade (6) perpendicularly to secure the at least one blade (6) within the plurality of slots (8).

7. The deburring tool (100) as claimed in claim 1, wherein the cover member (5) is defined with a plurality of through provisions (11) configured to receive a secondary fastener and lock the cover member (5) with the second end (4) of the tool body (1).
8. The deburring tool (100) as claimed in claim 7, wherein the second end (4) of the tool body (1) is defined with a plurality of receiving portions (9) and configured to receive the secondary fasteners from the plurality of through provisions (11).
9. The deburring tool (100) as claimed in claim 1, wherein the plurality of holes (10) are aligned parallel to the central axis (A-A) of the tool body (1) and perpendicular to the plurality of slots (8).
10. The deburring tool (100) as claimed in claims 1, 7 and 8, wherein the plurality of holes (10), the plurality of through provisions (11) and the plurality of receiving portions (9) are defined with internal threads to receive the primary fastener and the secondary fastener.

Documents

Application Documents

# Name Date
1 202321065607-STATEMENT OF UNDERTAKING (FORM 3) [29-09-2023(online)].pdf 2023-09-29
2 202321065607-REQUEST FOR EXAMINATION (FORM-18) [29-09-2023(online)].pdf 2023-09-29
3 202321065607-FORM 18 [29-09-2023(online)].pdf 2023-09-29
4 202321065607-FORM 1 [29-09-2023(online)].pdf 2023-09-29
5 202321065607-DRAWINGS [29-09-2023(online)].pdf 2023-09-29
6 202321065607-DECLARATION OF INVENTORSHIP (FORM 5) [29-09-2023(online)].pdf 2023-09-29
7 202321065607-COMPLETE SPECIFICATION [29-09-2023(online)].pdf 2023-09-29
8 202321065607-Proof of Right [20-10-2023(online)].pdf 2023-10-20
9 202321065607-FORM-26 [26-10-2023(online)].pdf 2023-10-26
10 Abstract.jpg 2024-02-17
11 202321065607-ORIGINAL UR 6(1A) FORM 1-190224.pdf 2024-02-21