Gerd Elfgen

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5303 Bornheim-Rosberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Milling tool for a rotating milling cylinder
- Patent number 4,298,233
- Issue date Nov 3, 1981
- Gerd Elfgen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method for attaching a chisel and associates device
- Publication number 20140191563
- Publication date Jul 10, 2014
- Gerd ELFGEN
- E21 - EARTH DRILLING MINING