Assignee
Inventors
- Ernst-Gunter Lierke (2 patents)
- Klaus Luhmann (1 patents)
- Sigurd Jonsson (3 patents)
- Michael Hohmann (14 patents)
- Lothar Bendig (11 patents)
- Frieder Hofmann (10 patents)
- Reinhard Gaa (3 patents)
US Patent 4981425 · Granted Jan 1, 1991