TREA

G. H. Bettis

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  • Industry, TX, US
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  • Information Patent Grant

    Valve actuator
    • Patent number 5,052,430
    • Issue date Oct 1, 1991
    • G. H. Bettis
    • Wayne L. Trautwein
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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