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Vibratory tumbling apparatus
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Patent number 5,512,008
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Issue date Apr 30, 1996
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General Kinematics Corporation
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Albert Musschoot
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B24 - GRINDING POLISHING
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Apparatus for cleaning casting
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Patent number 4,001,976
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Issue date Jan 11, 1977
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Wheelabrator-Frye, Inc.
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William Robertson MacMillan
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B24 - GRINDING POLISHING
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3793780
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Patent number 3,793,780
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Issue date Feb 26, 1974
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B24 - GRINDING POLISHING