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Shigeo Ohta

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Successive cold working process
    • Patent number 5,007,266
    • Issue date Apr 16, 1991
    • Honda Giken Kogyo Kabushiki Kaisha
    • Shohachi Nishiuchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...