TREA

Tazuo Waki

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Impeller type descent slowing device
    • Patent number 4,655,327
    • Issue date Apr 7, 1987
    • Lonseal Corporation
    • Hisatsugu Tomioka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...