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OKA Valve Mfg. Co., Ltd.

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  • Tokyo, JP
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  • Information Patent Grant

    Cartridge-type valve
    • Patent number 4,460,012
    • Issue date Jul 17, 1984
    • JGC Corporation
    • Noboru Koumi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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