Wilhelm Stoltefuss

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Kamen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Cutting devices for mining and tunnelling machines
- Patent number 4,437,708
- Issue date Mar 20, 1984
- Gewerkschaft Eisenhutte Westfalia
- Wilhelm Stoltefuss
- D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING
Information Patent Grant
Tunnel driving apparatus with cutter arms internal and external of...
- Patent number 4,248,481
- Issue date Feb 3, 1981
- Gewerkschaft Eisenhutte Westfalia
- Wilhelm Stoltefuss
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cutter bit assemblies
- Patent number 4,149,753
- Issue date Apr 17, 1979
- Gewerkschaft Eisenhutte Westfalia
- Rolf Stoltz
- E21 - EARTH DRILLING MINING