Assignee
Inventors
- Andreas Abbing (3 patents)
- Hannes Bertling (10 patents)
- George Kehl (1 patents)
- Robert Mergenthaler (13 patents)
- Dietmar Rischen (6 patents)
- Ernst-Dieter Schafer (7 patents)
- Edgar Schmitt (25 patents)
- Heinz Siegel (55 patents)
US Patent 4882976 · Granted Nov 28, 1989