Assignee
Inventors
- Franz Schuetz (28 patents)
- Hubert Sauter (305 patents)
- Siegbert Brand (33 patents)
- Bernd Wenderoth (51 patents)
- Ulf Baus (26 patents)
- Wolfgang Reuther (66 patents)
- Gisela Lorenz (377 patents)
- Eberhard Ammermann (454 patents)
US Patent 4957937 · Granted Sep 18, 1990