TREA

Tan Lee

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable ram block changer
    • Patent number 8,720,476
    • Issue date May 13, 2014
    • National-Oilwell Varco, L.P.
    • Tan Lee
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC