TREA

Patrick Lu

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  • North Bay, CA
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Patents Applicationslast 30 patents

  • Information Patent Application

    CORE BARREL VALVE ASSEMBLY
    • Publication number 20150014065
    • Publication date Jan 15, 2015
    • ATLAS COPCO CANADA INC.
    • Paul Lambert
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CORE BARREL VALVE ASSEMBLY
    • Publication number 20140353039
    • Publication date Dec 4, 2014
    • ATLAS COPCO CANADA INC.
    • Paul Lambert
    • E21 - EARTH DRILLING MINING