Assignee
Inventors
- Rosemarie Berger (1 patents)
- Hermann Dreher (4 patents)
- Juergen Hambrecht (39 patents)
- Eduard Heil (4 patents)
- Rudi W. Reffert (7 patents)
- Johann Swoboda (18 patents)
- Adolf Echte (43 patents)
- Peter Siebel (5 patents)
US Patent 4654418 · Granted Mar 31, 1987