Assignee
Inventors
- Bernd Janssen (50 patents)
- Norbert Meyer (103 patents)
- Ernst-Heinrich Pommer (93 patents)
- Eberhard Ammermann (454 patents)
- Friedrich-Wilhelm Kohlmann (6 patents)
- Walter Wesenberg (3 patents)
- Wolfgang Heberle (6 patents)
US Patent 4670454 · Granted Jun 2, 1987