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Roughing cutting insert
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Patent number 9,108,253
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Issue date Aug 18, 2015
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Kennametal Inc.
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Shi Chen
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Cutting inserts
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Patent number 9,095,913
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Issue date Aug 4, 2015
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Kennametal Inc.
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Shi Chen
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Finishing cutting insert
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Patent number 8,840,342
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Issue date Sep 23, 2014
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Kennametal Inc.
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Shi Chen
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Cutting inserts
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Patent number 8,454,274
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Issue date Jun 4, 2013
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Kennametal Inc.
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Shi Chen
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Cutting insert
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Patent number D636418
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Issue date Apr 19, 2011
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Kennametal Inc.
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Shi Chen
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D15 - Machines not elsewhere specified
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Cutting insert
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Patent number D633534
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Issue date Mar 1, 2011
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Kennametal Inc.
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Shi Chen
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D15 - Machines not elsewhere specified
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Cutting insert
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Patent number D632320
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Issue date Feb 8, 2011
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Kennametal Inc.
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Shi Chen
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D15 - Machines not elsewhere specified