Geoffrey King

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Hayward, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for determining the position of the end of a t...
- Patent number 6,965,230
- Issue date Nov 15, 2005
- Tommie L. Rogers
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for determining the position of the end of a t...
- Publication number 20050104583
- Publication date May 19, 2005
- Rogers Oil Tool Services, Inc.
- Tommie L. Rogers
- E21 - EARTH DRILLING MINING
Information Patent Application
Apparatus and method for determining the position of the end of a t...
- Publication number 20040174163
- Publication date Sep 9, 2004
- Tommie L. Rogers
- E21 - EARTH DRILLING MINING