Ernest C. Mayfield

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Claremore, OK, US

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Patents Applicationslast 30 patents

Information Patent Application
Threaded Connection with Secure Shoulder Ring for Electrical Submer...
- Publication number 20160084050
- Publication date Mar 24, 2016
- BAKER HUGHES INCORPORATED
- John Jay Mack
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...