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Class Information
Number: 451/13
Name: Abrading > Precision device or process - or with condition responsive control > With feeding of tool or work holder > And use of moving abutment > Moved by cam
Description: Subject matter in which the position of the blocking member is changed by engagement of an eccentric surface of a rotary member.

Patents under this class:

Patent Number Title Of Patent Date Issued
8419504 Method for relief-grinding the cutting teeth of taps, thread formers, and similar tools Apr. 16, 2013
6872124 Superfinishing apparatus Mar. 29, 2005
5683288 Patternless edger apparatus for ophthalmic lens grinders Nov. 4, 1997
5562527 Grinding machine for grinding eyeglass lenses Oct. 8, 1996
5476409 Grinding machine Dec. 19, 1995
5283981 Cam feed unit for a machine tool Feb. 8, 1994
5123213 Two stage centerless grinders Jun. 23, 1992
5044122 Method and apparatus for beveling an inside edge of a glass article Sep. 3, 1991
4969297 Roll-camber grinding apparatus Nov. 13, 1990
4941865 Method and apparatus for forming metallized packaging material Jul. 17, 1990
4866884 Lens grinding methods and apparatus Sep. 19, 1989
4860497 Drill grinder having drill holder including chucks for gripping shank and body of the drill Aug. 29, 1989
4739588 Method and apparatus for jointing rotatable cutter heads Apr. 26, 1988
4637168 Spectacle lens edge grinding machine Jan. 20, 1987
4577361 Brush tool Mar. 25, 1986
4538383 Front surface grinding machine and method Sep. 3, 1985
4182083 Grinding wheel feed programmer Jan. 8, 1980
4067148 Feed apparatus for grinding machine Jan. 10, 1978

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