[Class : 1] Chemicals Used In The Mining Industry; Chemicals Used In The Processing Of Coal; Chemicals Used In Coal Washing And Coal Beneficiation;[Class : 4] All Kinds Of Fuel; All Kinds Of Coal ( Including Middlings, Rejects And Coal Fines); All Kinds Of Coke (Including Coke Fines); Coal Tar Oil; Combustible Oil; Industrial Oil; Coal Briquettes; Mining Lubricants;[Class : 16] Paper, Cardboard And Goods Made From These Materials, Not Included In Other Classes; Printed Matter; Bookbinding Material; Photographs; Stationery; Adhesives For Stationery Or Household Purposes; Artists" Materials; Paint Brushes; Typewriters And Office Requisites (Except Furniture); Instructional And Teaching Material (Except Apparatus); Plastic Materials For Packaging (Not Included In Other Classes); Printers" Type[Class : 19] Non Metallic Materials For Use In The Mining Industry;[Class : 37] Machinery Installation; Mining Extraction; Drilling (For Minerals And Coal); Mining Engineering; Exploiting Quarries; Rental Of Construction Equipment; Rental Of Mining Machines; Repair Or Maintenance Of Mining Machines And Apparatus; Furnace Installation And Repair; Building Construction; Repair & Installation Services Included In Class 37[Class : 40] Treatment Of Materials, Including Washing Of Coal; Material Treatment Services Relating To Apparatus, Machines, And Instruments Used In Drilling And Mining; Information Relating To Material Treatment;[Class : 42] Exploration Services; Minerals Exploration (Prospecting); Geophysical Exploration; Drilling (Geological Prospecting); In Each For Minerals Generally And In Particular For Coal; Technical Research; Scientific And Industrial Research.