Assignee
Inventors
- Willy Schiwy (3 patents)
- Jurgen Schulze (10 patents)
- Ferdinand Hummes (2 patents)
- Peter Schulze (7 patents)
- Reinhold Hornle (18 patents)
- Hans-Heinz Molls (13 patents)
- Harry Orttmann (1 patents)
US Patent 4285692 · Granted Aug 25, 1981