Gunnar Bothman

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Celle, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hole enlargement drilling device and methods for using same
- Patent number 8,875,810
- Issue date Nov 4, 2014
- Baker Hughes Incorporated
- Matthias Meister
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Hole Enlargement Drilling Device and Methods for Using Same
- Publication number 20100139981
- Publication date Jun 10, 2010
- BAKER HUGHES INCORPORATED
- Matthias Meister
- E21 - EARTH DRILLING MINING