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Tzyh-Chyang Cherng

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  • Howell, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cutting die and method of forming
    • Patent number 7,827,883
    • Issue date Nov 9, 2010
    • Bernal, Inc.
    • Tzyh-Chyang Cherng
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR