Assignee
Inventors
- Antonius Vinnemann (4 patents)
- Heinrich Elsasser (5 patents)
- Manfred Walter (8 patents)
- Willi G. Gasier (1 patents)
- Werner Sommer (11 patents)
- Wolfgang Brenner (2 patents)
- Hermann Kress (7 patents)
US Patent 4196601 · Granted Apr 8, 1980