TREA

Masaru Sato

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ball check valve
    • Patent number 6,510,869
    • Issue date Jan 28, 2003
    • Ebara Corporation
    • Kiyoshi Ouchi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...