TREA

Keiichi Hamazaki

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Forging die
    • Patent number 5,406,825
    • Issue date Apr 18, 1995
    • Asahi Glass Company Ltd.
    • Noritoshi Horie
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...