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Holding wrench
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Patent number 9,199,324
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Issue date Dec 1, 2015
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HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
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Jun Niu
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Flexible threading system
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Patent number 8,434,390
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Issue date May 7, 2013
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Irwin Industrial Tool Company
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Brandon Seth Cross
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Wrench
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Patent number 8,047,101
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Issue date Nov 1, 2011
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Irwin Industrial Tool Company
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Brandon Seth Cross
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Wrench
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Patent number 7,793,569
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Issue date Sep 14, 2010
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Irwin Industrial Tool Company
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Derek J. Nash
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3169259
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Patent number 3,169,259
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Issue date Feb 16, 1965
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2273598
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Patent number 2,273,598
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Issue date Feb 17, 1942
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2177091
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Patent number 2,177,091
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Issue date Oct 24, 1939
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2019391
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Patent number 2,019,391
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Issue date Oct 29, 1935
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1862225
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Patent number 1,862,225
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Issue date Jun 7, 1932
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR