TREA

Tsunetaka Sumomogi

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for grinding a rotary body
    • Patent number 4,716,687
    • Issue date Jan 5, 1988
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Hidehiko Tsukamoto
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...