Assignee
Inventors
- Jens Herwig (15 patents)
- Hagen Norenberg (1 patents)
- Friedhelm Bergmann (1 patents)
- Manfred Stiller (1 patents)
- Horst Schlemmermeyer (1 patents)
- Wilfried Schmidt (23 patents)
- Hilmar Straube (1 patents)
- Helmut Wolter (1 patents)
US Patent 4712434 · Granted Dec 15, 1987