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Window polisher
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Patent number 5,964,645
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Issue date Oct 12, 1999
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Douglas Industries, Inc.
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Thomas Jemt
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B60 - VEHICLES IN GENERAL
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Electrode brushing apparatus
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Patent number 4,447,308
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Issue date May 8, 1984
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Cominco Ltd.
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Robert D. H. Willans
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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3643278
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Patent number 3,643,278
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Issue date Feb 22, 1972
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B24 - GRINDING POLISHING
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1803752
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Patent number 1,803,752
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Issue date May 5, 1931
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B24 - GRINDING POLISHING
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1729498
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Patent number 1,729,498
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Issue date Sep 24, 1929
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B24 - GRINDING POLISHING
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1724703
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Patent number 1,724,703
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Issue date Aug 13, 1929
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B24 - GRINDING POLISHING
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1674263
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Patent number 1,674,263
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Issue date Jun 19, 1928
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B24 - GRINDING POLISHING
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1600282
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Patent number 1,600,282
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Issue date Sep 21, 1926
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B24 - GRINDING POLISHING