Assignee
Inventors
- Karl Eicken (126 patents)
- Hermann Graf (17 patents)
- Walter Gramlich (30 patents)
- Hubert Sauter (305 patents)
- Costin Rentzea (43 patents)
- Ernst-Heinrich Pommer (93 patents)
- Eberhard Ammermann (454 patents)
US Patent 4617303 · Granted Oct 14, 1986