[Class : 3] Carbides Of Metal [Abrasives]; Corundum [Abrasives]; Grinding Preparations; Sharpening Preparations; Polishing Stones; Rust Removing Preparations.[Class : 6] Fittings Of Metal For Compressed Air Ducts; Tungsten; Steel For Use In Rasp Blades For Tire Retreading Machines.[Class : 7] Machine Tools; Rasps [Machine Tools] And Parts Thereof (Not Included In Other Classes); Rubber Rasps [Machine Tools] And Parts Thereof (Not Included In Other Classes); Blades [Machine Tools]; Blades For Powered Machine Tools; Blades For Use With Tire Rasps [Machine Tools]; Blades For Rubber Rasps [Machine Tools]; Disposable Blades For Use With Machines; Sharpeners For Rasps And For Rasp Blades [Machine Tools]; Blade Sharpening Machines; Knife And Blade Holders; Knives, Electric; Blades [Parts Of Machines]; Power Operated Rubber Buffing And Rasping Machine Tools; Blades For Power Operated Rubber Buffing And Rasping Tools And Machines Tools; Parts And Accessories (Not Included In Other Classes) For Power Operated Rubber Rasps And For Power Operated Rubber Buffing Tools; Machine Tools For Cutting; Power Operated Cutting Tools; Tool (Machine) For Cutting; Carbide Burs [Machine Tools]; Carbide Drill Bits For Machines; Carbide Drill Tips For Machines; Cemented Carbide Cutting Tools; Cemented Carbide Tips; Cemented Carbide Tips For Tool Bits; Cemented Carbide Tips [Tools For Machines]; Cemented Carbide Tools [Machine]; Tungsten Carbide Machine Tools; Blades For Power Operated Hand Tools; Power Operated Hand Tools For Buffing And Rasping; Blades For Power Operated Hand Tools For Buffing And Rasping; Blades [Parts Of Machines]; Parts And Accessories (Not Included In Other Classes) For Power Operated Rubber Rasps And For Power Operated Hand Tools For Buffing; Power Operated Grinding Wheels For Knives And Blades.[Class : 8] Hand Operated Tools And Implements For Treatment Of Materials, And For Construction, Repair And Maintenance; Hand Tools And Implements [Hand Operated]; Parts And Fittings (Not Included In Other Classes) For Hand Tools; Cutting, Drilling, Grinding, Sharpening And Surface Treatment Hand Tools; Rasps [Hand Tools] And Parts Thereof (Not Included In Other Classes); Rubber Rasps [Hand Tools] And Parts Thereof (Not Included In Other Classes); Blades For Hand Tools; Blades (Hand Tools); Blades For Use With Tire Rasps [Hand Tools]; Blades For Rubber Rasps [Hand Tools]; Blades For Knives; Knives; Knives [Hand Tools]; Planing Blades; Disposable Blades For Use With Hand Tools; Sharpeners For Rasps And For Rasp Blades [Hand Tools]; Blade Holders Being Hand Tool Holders; Cutting Tools [Hand Tools]; Hand Operated Cutting Tools; Cutting Discs [Hand Operated Tools]; Cutting Wheels [Hand Operated Tools]; Cutting Dies [Hand Operated Tools]; Cutting Inserts For Use With Hand Tools; Cutting Guides For Use With Hand Operated Tools; Cutting Dies For Use With Hand Operated Tools; Cutting Discs For Use With Hand Operated Tools; Graving Tools [Hand Tools]; Grindstones [Hand Tools]; Sharpening Wheels [Hand Tools]; Sharpening Wheels For Knives And Blades [Hand Tools]; Saws [Hand Tools]; Saws [Hand Operated]; Sharpening Stones; Blade Holders [Hand Tools, Hand Operated]; Cutting Tools [Hand Tools]; Blade Sharpening Hand Tools, Hand Operated.[Class : 37] Tire Retreading; Retreading Of Tires [Tyres]; Installation, Maintenance And Repair Of Machines, Plants, Machine Tools, Hand Tools And Parts And Accessories For Tools And Power Operated Tools.[Class : 40] Grinding; Surface Grinding; Processing Of Metal Surfaces Using Precision Grinding Techniques; Processing Of Metal Surfaces By Precision Grinding And Abrasive Polishing; Vulcanizing [Material Treatment].[Class : 41] Teaching; Education; Instruction; Education And Instruction; Educational Services; Educational Seminars; Educational Demonstrations; Educational Instruction; Educational Consultancy; Educational Information; Instruction Services.[Class : 11] Ventilation Apparatus For Pollution Control For Evacuation Of Rubber Particles, Comprised Of Water Sprayers, Piping, Solenoid Valves, And Controls And Motors Therefor.[Class : 12] Patches For Tyres; Adhesive Rubber Patches For Repairing Inner Tubes; Pneumatic Tyres; Treads For Retreading Tires [Tyres]; Tire Retreading Caps; Treads For Retreading Tires For Civil Engineering Vehicles.