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Electric knife sharpener
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Patent number 12,011,799
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Issue date Jun 18, 2024
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Cuttway Products Co., Ltd.
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Tzu-Yi Lin
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B24 - GRINDING POLISHING
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Blade sharpening system
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Patent number 9,855,633
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Issue date Jan 2, 2018
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Monte Warne
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Blade sharpening system
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Patent number 9,751,182
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Issue date Sep 5, 2017
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Monte Warne
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3561165
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Patent number 3,561,165
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Issue date Feb 9, 1971
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B24 - GRINDING POLISHING
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2765590
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Patent number 2,765,590
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Issue date Oct 9, 1956
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B24 - GRINDING POLISHING
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2550543
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Patent number 2,550,543
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Issue date Apr 24, 1951
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B24 - GRINDING POLISHING
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2546914
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Patent number 2,546,914
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Issue date Mar 27, 1951
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B24 - GRINDING POLISHING
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2505223
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Patent number 2,505,223
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Issue date Apr 25, 1950
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B24 - GRINDING POLISHING
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2481918
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Patent number 2,481,918
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Issue date Sep 13, 1949
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B24 - GRINDING POLISHING
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2475455
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Patent number 2,475,455
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Issue date Jul 5, 1949
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B24 - GRINDING POLISHING
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2460250
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Patent number 2,460,250
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Issue date Jan 25, 1949
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B24 - GRINDING POLISHING
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2456482
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Patent number 2,456,482
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Issue date Dec 14, 1948
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B24 - GRINDING POLISHING
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2452863
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Patent number 2,452,863
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Issue date Nov 2, 1948
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B24 - GRINDING POLISHING
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2269311
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Patent number 2,269,311
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Issue date Jan 6, 1942
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B24 - GRINDING POLISHING
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2188223
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Patent number 2,188,223
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Issue date Jan 23, 1940
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B24 - GRINDING POLISHING
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2156453
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Patent number 2,156,453
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Issue date May 2, 1939
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B24 - GRINDING POLISHING
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2123171
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Patent number 2,123,171
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Issue date Jul 12, 1938
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B24 - GRINDING POLISHING
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2095501
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Patent number 2,095,501
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Issue date Oct 12, 1937
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B24 - GRINDING POLISHING
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1933055
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Patent number 1,933,055
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Issue date Oct 31, 1933
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B24 - GRINDING POLISHING
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1931500
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Patent number 1,931,500
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Issue date Oct 24, 1933
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B24 - GRINDING POLISHING
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1878840
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Patent number 1,878,840
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Issue date Sep 20, 1932
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B24 - GRINDING POLISHING
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1862277
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Patent number 1,862,277
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Issue date Jun 7, 1932
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B24 - GRINDING POLISHING
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1844073
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Patent number 1,844,073
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Issue date Feb 9, 1932
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B24 - GRINDING POLISHING
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1662679
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Patent number 1,662,679
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Issue date Mar 13, 1928
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B24 - GRINDING POLISHING
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1654000
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Patent number 1,654,000
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Issue date Dec 27, 1927
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B24 - GRINDING POLISHING