Assignee
Inventors
- Klaus Ulrichs (1 patents)
- Joseph Hibbel (2 patents)
- Volkmar Schmidt (14 patents)
- Bernhard Lieder (11 patents)
- Heinrich Scheve (8 patents)
- Burchard Schulze-Frenking (1 patents)
- Wolfgang Hofs (7 patents)
- Jurgen Nottebohm (1 patents)
US Patent 4699773 · Granted Oct 13, 1987