Peter Gross

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Uberherrn, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for pillar recovery in chamber-and-pillar working and tubbin...
- Patent number 7,540,693
- Issue date Jun 2, 2009
- DBT GmbH
- Peter Gross
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method for pillar recovery in chamber-and-pillar working and tubbin...
- Publication number 20070046094
- Publication date Mar 1, 2007
- Peter Gross
- E21 - EARTH DRILLING MINING