Assignee
Inventors
- Horst Wingert (49 patents)
- Siegbert Brand (33 patents)
- Bernd Wenderoth (51 patents)
- Franz Schuetz (28 patents)
- Hubert Sauter (305 patents)
- Franz Roehl (37 patents)
- Gisela Lorenz (377 patents)
- Eberhard Ammermann (454 patents)
US Patent 5089528 · Granted Feb 18, 1992