TREA

Kirk A. Johnson

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  • Atascadero, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Check valve
    • Patent number 5,913,331
    • Issue date Jun 22, 1999
    • Zurn Industries, Inc.
    • Brad L. Noll
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...