Graig M. Collins

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Proctorville, OH, US

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Patents Applicationslast 30 patents

Information Patent Application
AUTOMATED, LOW PROFILE DRILLING/BOLTING MODULE WITH COLLARING
- Publication number 20080240866
- Publication date Oct 2, 2008
- J.H. Fletcher & Co.
- Gregory E. Hinshaw
- E21 - EARTH DRILLING MINING
Information Patent Application
Automated, low profile drilling/bolting module with manual bolt mag...
- Publication number 20060283634
- Publication date Dec 21, 2006
- J.H. Fletcher & Co., Inc.
- Gregory E. Hinshaw
- E21 - EARTH DRILLING MINING