Assignee
Inventors
- Berthold Narr (37 patents)
- Norbert Hauel (85 patents)
- Klaus Noll (37 patents)
- Joachim Heider (28 patents)
- Manfred Psiorz (10 patents)
- Andreas Bomhard (12 patents)
- Jacques van Meel (12 patents)
- Willi Diederen (19 patents)
US Patent 4831027 · Granted May 16, 1989