Norbert Katthöfer

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Lunen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for extracting extraction products in underground...
- Patent number 7,350,874
- Issue date Apr 1, 2008
- DBT GmbH
- Reinhold Brüggemann
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method and device for extracting extraction products in underground...
- Publication number 20060208555
- Publication date Sep 21, 2006
- DBT GmbH
- Reinhold Brüggemann
- E21 - EARTH DRILLING MINING