TREA

Koichi Nishigaki

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  • Gifu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gate valve system
    • Patent number 6,283,446
    • Issue date Sep 4, 2001
    • Suiken Technology Co., Ltd.
    • Toshiyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...