Assignee
Inventors
- Matthias Zipplies (21 patents)
- Bernhard Zipperer (17 patents)
- Hubert Sauter (305 patents)
- Norbert Goetz (121 patents)
- Franz Roehl (37 patents)
- Eberhard Ammermann (454 patents)
- Gisela Lorenz (377 patents)
US Patent 5051409 · Granted Sep 24, 1991