Assignee
Inventors
- Hans Liepmann (17 patents)
- Rolf Hueschens (5 patents)
- Wolfgang Milkowski (19 patents)
- Horst Zeugner (22 patents)
- Henning Heinemann (15 patents)
- Klaus-Ullrich Wolf (11 patents)
- Insa Hell (8 patents)
- Reinhard Hempel (6 patents)
US Patent 4402981 · Granted Sep 6, 1983