Darcy R. Zelman

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Athabasca, CA

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Patents Grantslast 30 patents

Information Patent Grant
Wellhead heating apparatus and method
- Patent number 6,776,227
- Issue date Aug 17, 2004
- Rodney T. Beida
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Wellhead heating apparatus and method
- Publication number 20030168518
- Publication date Sep 11, 2003
- Rodney T. Beida
- E21 - EARTH DRILLING MINING