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Class Information
Number: 51
Name: Abrasive tool making process, material, or composition >
Description: This is the class of:










Class Number Class Name No. of Patents
51/294

Bag or filled cloth

40
51/295

Impregnating or coating an abrasive tool

1031
51/297

Laminating

262
51/293

Miscellaneous

800
51/296

Pore forming

145
51/302

With carbohydrate or reaction product thereof

30
51/303

Cellulose or derivative thereof

36
51/305

With ester-type wax, bituminous material, or tarry residue

20
51/304

With fats, fatty oils or fatty oil acids and salts thereof

46
51/306

With hydrocarbon

76
51/307

With inorganic material

1737
51/308

Clay, silica, or silicate

880
51/309

Metal or metal oxide

2160
51/300

With natural resin or reaction product thereof

22
51/301

With protein or reaction product thereof

15
51/299

With rubber or reaction product thereof

49
51/298

With synthetic resin

935
 
 
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