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San Shine Hardware Works Co., Ltd.

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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for forming hollow articles
    • Patent number 5,170,655
    • Issue date Dec 15, 1992
    • San Shine Hardware Works Co., Ltd.
    • Yuan-Ho Lee
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...