Assignee
Inventors
- Karl-Heinz Kretschmer (6 patents)
- Jurgen Rollich (3 patents)
- Boto Kritzner (1 patents)
- Gerhard Schindler (1 patents)
- Egon Vilbrandt (1 patents)
- Gunter John (8 patents)
- Christian Steglich (7 patents)
US Patent 4785730 · Granted Nov 22, 1988