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Grinding machine
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Patent number 7,044,841
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Issue date May 16, 2006
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Juei-Seng Liao
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B24 - GRINDING POLISHING
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3889429
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Patent number 3,889,429
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Issue date Jun 17, 1975
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B24 - GRINDING POLISHING
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3872627
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Patent number 3,872,627
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Issue date Mar 25, 1975
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B24 - GRINDING POLISHING
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2891359
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Patent number 2,891,359
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Issue date Jun 23, 1959
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B24 - GRINDING POLISHING
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2865143
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Patent number 2,865,143
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Issue date Dec 23, 1958
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A43 - FOOTWEAR
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2336004
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Patent number 2,336,004
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Issue date Dec 7, 1943
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B24 - GRINDING POLISHING
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2279783
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Patent number 2,279,783
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Issue date Apr 14, 1942
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B24 - GRINDING POLISHING
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1642171
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Patent number 1,642,171
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Issue date Sep 13, 1927
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B26 - HAND CUTTING TOOLS CUTTING SEVERING