Assignee
Inventors
- Phillip A. Rossy (10 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 4636504 · Granted Jan 13, 1987