Earl Eugene Berkheimer

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Arcadia, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Well string assembly
- Patent number 7,188,672
- Issue date Mar 13, 2007
- Shell Oil Company
- Earl Eugene Berkheimer
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Well string assembly
- Publication number 20050029017
- Publication date Feb 10, 2005
- Earl Eugene Berkheimer
- E21 - EARTH DRILLING MINING