John Charlton

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Elk Point, CA

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Patents Grantslast 30 patents

Information Patent Grant
Rod reel and method of repairing a rod string
- Patent number 8,622,122
- Issue date Jan 7, 2014
- Patrick Demers
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
ROD REEL AND METHOD OF REPAIRING A ROD STRING
- Publication number 20110139287
- Publication date Jun 16, 2011
- Patrick Demers
- E21 - EARTH DRILLING MINING