Assignee
Inventors
- Walter Hafner (11 patents)
- Erich Markl (6 patents)
- Ludwig Eibel (3 patents)
- Gerhard Kreis (7 patents)
- Dietrich Samrowski (4 patents)
- Manfred Wick (3 patents)
- Bernward Deubzer (77 patents)
- Wilhelm Friedrich (5 patents)
US Patent 4405469 · Granted Sep 20, 1983