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Yutaka Yamada

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  • Kariya, JP
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  • Information Patent Grant

    Check valve assembly for pipeline system
    • Patent number 4,693,269
    • Issue date Sep 15, 1987
    • Yutaka Yamada
    • Yutaka Yamada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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