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Class Information
Number: 451/553
Name: Abrading > Rigid tool > Stationary > Metal
Description: Rigid, stationary abrading tool in which the abrading surface is of metal.

Patents under this class:

Patent Number Title Of Patent Date Issued
8684797 Apparatus and composition for sharpening a paper shredder blade Apr. 1, 2014
8342915 Conditioning and cutting apparatus Jan. 1, 2013
7993185 Device for smoothing the surfaces of hard or soft materials Aug. 9, 2011
7887397 Knife sharpening bar Feb. 15, 2011
7503241 Device for sharpening the blade of a manual cutting tool Mar. 17, 2009
6616520 Polishing cloth and method for attaching/detaching the polishing cloth to/from polishing machine base plate Sep. 9, 2003
6358123 Apparatus and method for reducing disc surface asperities to sub-microinch height Mar. 19, 2002
6007407 Abrasive construction for semiconductor wafer modification Dec. 28, 1999
5683292 Abrasive plate Nov. 4, 1997
5655959 Knife edge sharpener Aug. 12, 1997
5040435 Knife edge deburring apparatus Aug. 20, 1991
4934110 Edge sharpening apparatus Jun. 19, 1990
4910923 Sharpening tool Mar. 27, 1990
4646477 Knife sharpener Mar. 3, 1987

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