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Drill and method for forming hole
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Patent number 9,475,128
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Issue date Oct 25, 2016
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MIYAGITANOI CO., LTD.
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Teruo Sawabe
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tap
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Patent number 6,499,920
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Issue date Dec 31, 2002
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Tanoi Mfg. Co., Ltd.
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Teruo Sawabe
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Thread forming tap
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Patent number 5,797,710
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Issue date Aug 25, 1998
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Tanoi Mfg. Co., Ltd.
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Teruo Sawabe
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR