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Class Information
Number: 451/110
Name: Abrading > Machine > Scouring device > Rotary cylindrical scouring tool > Opposed pair of scouring tools
Description: Abrading machine using opposed rotary cylinders for the simultaneous application of granular abrasive material to opposite sides of a workpiece for the purpose of scouring the same (i.e., removing foreign or extraneous materials).

Patents under this class:

Patent Number Title Of Patent Date Issued
6857950 Polishing apparatus, semiconductor device manufacturing method using the polishing apparatus, and semiconductor device manufactured by the manufacturing method Feb. 22, 2005
5688159 Method of and apparatus for automatically polishing a mother blank of sheet copper Nov. 18, 1997
5464363 Polishing stack for thermoplastic films or sheets Nov. 7, 1995
5109127 Nonionic surface active agent Apr. 28, 1992
4318199 Machine for burring and cleaning of substantially plane work pieces Mar. 9, 1982
4187081 Apparatus for treatment of sheet material with the use of ferromagnetic powder Feb. 5, 1980

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