Assignee
Inventors
- Hans Dolata (11 patents)
- Reinhold Fink (12 patents)
- Gerd Itzrodt (3 patents)
- Adam Kelbert (2 patents)
- Siegfried Ryssel (1 patents)
- Anton Wehle (9 patents)
- Dieter Wieland (14 patents)
- Gerhard Zerrer (21 patents)
US Patent 4644658 · Granted Feb 24, 1987