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Ronald J. Manson

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  • The Woodlands, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bonnetless swing check valve
    • Patent number 5,341,840
    • Issue date Aug 30, 1994
    • Tom Wheatley Valve Company
    • Ronald J. Manson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...