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NATIONAL OILWEL VARCO NORWAY AS

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  • Kristiansand,
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Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRAULIC CLAMPING DEVICE
    • Publication number 20120104674
    • Publication date May 3, 2012
    • NATIONAL OILWEL VARCO NORWAY AS
    • Jonathan Garrick Webb
    • E21 - EARTH DRILLING MINING