TREA

Brian A. Groce JR.

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  • Yadkinville, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earth boring bit
    • Patent number 6,655,476
    • Issue date Dec 2, 2003
    • Willie H. Groce
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Earth boring bit
    • Patent number 6,533,048
    • Issue date Mar 18, 2003
    • Willie H. Groce
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Earth boring bit
    • Publication number 20030070845
    • Publication date Apr 17, 2003
    • Willie H. Groce
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Earth boring bit
    • Publication number 20010047889
    • Publication date Dec 6, 2001
    • Willie H. Groce,
    • E21 - EARTH DRILLING MINING