TREA

Tsuneo Haba

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  • Kitamoto, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for working surface of metal pipe
    • Patent number 4,712,407
    • Issue date Dec 15, 1987
    • Mitsubishi Kinzoku Kabushiki Kaisha
    • Naokazu Yoshiki
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...