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Karl D. Duex

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  • Potosi, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Angled dual check valve
    • Patent number 7,185,671
    • Issue date Mar 6, 2007
    • A. Y. McDonald Mfg. Co.
    • Karl D. Duex
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Angled dual check valve
    • Publication number 20060137747
    • Publication date Jun 29, 2006
    • Karl D. Duex
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...