Helmut Dick

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Spiez, CH

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Patents Grantslast 30 patents

Information Patent Grant
Tunnel boring machine
- Patent number 5,104,261
- Issue date Apr 14, 1992
- Atlas Copco Constructing and Mining Technique AB
- Olov Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnelling machine
- Patent number 4,232,905
- Issue date Nov 11, 1980
- Atlas Copco Aktiebolag
- Helmut Dick
- E21 - EARTH DRILLING MINING