Assignee
No assignee recorded.
Inventors
- Unknown
- Unknown
- Sigurd Leyck (17 patents)
- Helmut Wetzig (4 patents)
- Christian Birkner (27 patents)
- Kurt Kesselring (2 patents)
- Bruno Christ (2 patents)
- Klaus Steiner (20 patents)
- Unknown
US Patent 4618605 · Granted Oct 21, 1986
No assignee recorded.