Donald B. Grass

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Edmonton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Remotely operable underwater drilling system and drilling method
- Patent number 9,322,220
- Issue date Apr 26, 2016
- Marl Technologies
- Ronald W. Innes
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
REMOTELY OPERABLE UNDERWATER DRILLING SYSTEM AND DRILLING METHOD
- Publication number 20130206476
- Publication date Aug 15, 2013
- MARL TECHNOLOGIES INC.
- Ronald W. Innes
- E21 - EARTH DRILLING MINING