Darcy A. Downs

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for coaxially joining components to resist rel...
- Patent number 9,587,441
- Issue date Mar 7, 2017
- Evolution Engineering Inc.
- Aaron W. Logan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR COAXIALLY JOINING COMPONENTS TO RESIST REL...
- Publication number 20150292274
- Publication date Oct 15, 2015
- Evolution Engineering Inc.
- Aaron W. Logan
- E21 - EARTH DRILLING MINING