David William Evans

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Rankin Park, AU

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Patents Applicationslast 30 patents

Information Patent Application
Friction Bolt Assembly
- Publication number 20110311315
- Publication date Dec 22, 2011
- DIWIDAG-SYSTEMS INTERNATIONAL PTY LIMITED
- David W. Evans
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHOD FOR MANUFACTURING A CABLE BOLT
- Publication number 20110259072
- Publication date Oct 27, 2011
- David William Evans
- E21 - EARTH DRILLING MINING