TREA

Willam E. Brennan

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  • Richmond, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Active mud valve system
    • Patent number 8,348,642
    • Issue date Jan 8, 2013
    • Schlumberger Technology Corporation
    • Willam E. Brennan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...