Assignee
Inventors
- Alexander von Ardenne (2 patents)
- Eckehard Madler (2 patents)
- Bernd Wehner (1 patents)
- Kurt Richter (7 patents)
- Nicolas Schiller (8 patents)
- Josef Tobisch (1 patents)
- Gunter Hahnel (1 patents)
US Patent 5057688 · Granted Oct 15, 1991