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Key duplicating machine
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Patent number 7,300,235
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Issue date Nov 27, 2007
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Jet Hardware Manufacturing Corporation
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Grigory Gimelfarb
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Inside broaching machine
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Patent number 6,568,890
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Issue date May 27, 2003
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Lothar Gierth
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Broaching device and method
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Patent number 5,615,467
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Issue date Apr 1, 1997
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Thomson Saginaw Ball Screw, Inc.
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Mark J. Simmons
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3499366
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Issue date Nov 24, 1942
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2013899
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Issue date Sep 10, 1935
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1991937
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Patent number 1,991,937
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Issue date Feb 19, 1935
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1897386
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Patent number 1,897,386
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Issue date Feb 14, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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31333
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Patent number 31,333
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Issue date Feb 5, 1861
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G01 - MEASURING TESTING