Assignee
Inventors
- Gunter Lailach (26 patents)
- Rudolf Gerken (13 patents)
- Karl-Heinz Schultz (9 patents)
- Rudolf Hornung (1 patents)
- Walter Bockmann (5 patents)
- Wolfgang Larbig (3 patents)
- Wolfgang Dietz (43 patents)
US Patent 4772757 · Granted Sep 20, 1988