Phillip Edwin Gramlich, JR.

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Morgantown, WV, US

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Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR ANCHOR BOLT GROUTING
- Publication number 20120275867
- Publication date Nov 1, 2012
- DSI UNDERGROUND SYSTEMS, INC.
- ROY CARLTON JONES
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND APPARATUS FOR PRESERVING THE FIRMNESS AND INTERNAL PRESS...
- Publication number 20120091016
- Publication date Apr 19, 2012
- DSI UNDERGROUND SYSTEMS, INC.
- Roy Carlton Jones
- E21 - EARTH DRILLING MINING