TREA

Richard P. Callahan

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  • Hoosick Falls, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stabilizing check valve
    • Patent number 4,129,144
    • Issue date Dec 12, 1978
    • Bo Allan Andersson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...