Kenneth Roy Langley

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Orem, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Human-powered borehole drill
- Patent number 9,562,393
- Issue date Feb 7, 2017
- John Renouard
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Human-Powered Borehole Drill
- Publication number 20130206480
- Publication date Aug 15, 2013
- John Renouard
- E21 - EARTH DRILLING MINING