TREA

John T. Hill

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  • Winnpeg, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Poppet valve assembly
    • Patent number 6,679,291
    • Issue date Jan 20, 2004
    • Exxon.Valve and Coupling Company
    • Richard L. Fahl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...