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Kevin N. Hannigan

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  • St. Johns, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Debris cap
    • Patent number 6,817,417
    • Issue date Nov 16, 2004
    • FMC Technologies, Inc.
    • Richard Blair
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Debris cap
    • Publication number 20020185279
    • Publication date Dec 12, 2002
    • Richard Blair
    • E21 - EARTH DRILLING MINING