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Class Information
Number: 451/309
Name: Abrading > Machine > Endless band tool > Superposed endless band tools
Description: Abrading machine employing an endless traveling abrading band backed by a second endless traveling band.










Patents under this class:

Patent Number Title Of Patent Date Issued
8574036 Machining station and apparatus for machining a workpiece Nov. 5, 2013
7614935 Apparatus for machining a workpiece Nov. 10, 2009
7322878 Belt grinder and attachment for grinding pipe ends Jan. 29, 2008
7115021 Abrasive, method of polishing target member and process for producing semiconductor device Oct. 3, 2006
7090560 System and method for detecting abrasive article orientation Aug. 15, 2006
7083505 Stacked triple wheel head assembly Aug. 1, 2006
6793558 Method and apparatus for planarizing a microelectronic substrate with a tilted planarizing surface Sep. 21, 2004
6652363 Method and apparatus for uniformly planarizing a microelectronic substrate Nov. 25, 2003
6629875 Machine for grinding-polishing of a water edge Oct. 7, 2003
6589102 Surface polishing method and apparatus Jul. 8, 2003
6565425 Hand-held grinding machine May. 20, 2003
6315645 Patterned polishing pad for use in chemical mechanical polishing of semiconductor wafers Nov. 13, 2001
6302767 Chemical mechanical polishing with a polishing sheet and a support sheet Oct. 16, 2001
6299517 Belt sanding machine Oct. 9, 2001
6234159 Wire saw and process for cutting off shaped articles May. 22, 2001
6135859 Chemical mechanical polishing with a polishing sheet and a support sheet Oct. 24, 2000
6086467 Grinding wheel Jul. 11, 2000
6015338 Abrasive tool for grinding needles Jan. 18, 2000
5718216 Closure for saw cables Feb. 17, 1998
5669804 Magnetic tape surface treatment method and apparatus Sep. 23, 1997
4443977 Machine for producing parts having skew surfaces of predetermined configuration Apr. 24, 1984











 
 
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