Assignee
Inventors
- Helmut Rusch (1 patents)
- Guenter Waitl (8 patents)
- Hansjoerg Harrasser (1 patents)
- Hans J. Richter (13 patents)
- Lee FRANCIS (21 patents)
- Alois Seidl (3 patents)
- Hans Wissinger (1 patents)
- Hans-Joachim Hampel (3 patents)
US Patent 4893169 · Granted Jan 9, 1990