TREA

Hirokazu Ishiyama

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  • Chita, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for rolling a ring-shaped work
    • Patent number 5,605,068
    • Issue date Feb 25, 1997
    • Daido Tokushuko Kabushiki Kaisha
    • Takao Yamasoto
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...