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Class Information
Number: 51/284
Name: Abrasive tool making process, material, or composition >

Sub-classes under this class:

Class Number Class Name Patents
51/293 Miscellaneous 792
51/294 Bag or filled cloth 39
51/295 Impregnating or coating an abrasive tool 1,026
51/296 Pore forming 145
51/297 Laminating 256
51/298 With synthetic resin 932
51/299 With rubber or reaction product thereof 49
51/300 With natural resin or reaction product thereof 22
51/301 With protein or reaction product thereof 15
51/302 With carbohydrate or reaction product thereof 29
51/304 With fats, fatty oils or fatty oil acids and salts thereof 45
51/305 With ester-type wax, bituminous material, or tarry residue 19
51/306 With hydrocarbon 76
51/307 With inorganic material 1,712

Patents under this class:

Patent Number Title Of Patent Date Issued

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