Assignee
Inventors
- Werner Ostertag (34 patents)
- Gerd Wunsch (5 patents)
- Volker Kiener (5 patents)
- Eckhard Hetzel (5 patents)
- Siegfried Schreiner (4 patents)
- Bernd Leutner (27 patents)
- Hans-Ulrich Schlimper (8 patents)
- Erfried Voelkl (4 patents)
US Patent 4237318 · Granted Dec 2, 1980