Assignee
Inventors
- Heinz Sontag (2 patents)
- Hartmut Elias (2 patents)
- Wolfgang Ludwig (53 patents)
- Walter Fritzsch (1 patents)
- Wolfgang Eschner (4 patents)
- Rainer Hundhausen (1 patents)
- Harald Kratz (2 patents)
US Patent 5005979 · Granted Apr 9, 1991