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Tools & Hardware
Class Information
Number:
51/420
Name:
Abrasive tool making process, material, or composition
>
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
51/293
Miscellaneous
681
51/294
Bag or filled cloth
38
51/295
Impregnating or coating an abrasive tool
955
51/296
Pore forming
125
51/297
Laminating
213
51/298
With synthetic resin
828
51/299
With rubber or reaction product thereof
41
51/300
With natural resin or reaction product thereof
17
51/301
With protein or reaction product thereof
11
51/302
With carbohydrate or reaction product thereof
25
51/304
With fats, fatty oils or fatty oil acids and salts thereof
44
51/305
With ester-type wax, bituminous material, or tarry residue
17
51/306
With hydrocarbon
72
51/307
With inorganic material
1,270
Patents under this class:
Patent Number
Title Of Patent
Date Issued
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