Assignee
Inventors
- Philip A. Rossy (1 patents)
- Marco Thyes (30 patents)
- Albrecht Franke (30 patents)
- Horst Koenig (17 patents)
- Hans D. Lehmann (32 patents)
- Josef Gries (36 patents)
- Ludwig Friedrich (12 patents)
- Dieter Lenke (47 patents)
US Patent 4873246 · Granted Oct 10, 1989