Assignee
Inventors
- Michael Keil (121 patents)
- Dieter Jahn (43 patents)
- Dieter Kolassa (26 patents)
- Ulrich Schirmer (64 patents)
- Rainer Becker (110 patents)
- Johann Jung (58 patents)
- Wilhelm Rademacher (64 patents)
US Patent 4948415 · Granted Aug 14, 1990