TREA

Donald J. Clarkson

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  • Wokingham, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Modular directional valve
    • Patent number 4,515,184
    • Issue date May 7, 1985
    • Abex Corporation
    • Norris Bownass
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...