Assignee
Inventors
- Ulrich Theis (12 patents)
- H. -P. Hellmeister (1 patents)
- Bernhard Bisping (31 patents)
- Michael Vagedes (33 patents)
- Siegfried Kebler (1 patents)
- Horst Kantner (3 patents)
- Peter Sommer (26 patents)
US Patent 5090328 · Granted Feb 25, 1992