Assignee
Inventors
- Lothar Daum (6 patents)
- Gerhard Keilhauer (10 patents)
- Gisela Lorenz (377 patents)
- Eberhard Ammermann (454 patents)
- Wolfgang Weber (7 patents)
- Wolfgang Steglich (14 patents)
- Bert Steffan (2 patents)
- Angela Scherer (1 patents)
US Patent 4959484 · Granted Sep 25, 1990