Assignee
Inventors
- Helmut Hofmeister (39 patents)
- Henry Laurent (72 patents)
- Paul-Eberhard Schulze (14 patents)
- Rudolf Wiechert (83 patents)
- Walter Elger (109 patents)
- Kunhard Pollow (3 patents)
- Hans-Joerg Grill (2 patents)
US Patent 4725426 · Granted Feb 16, 1988