Assignee
Inventors
- Eckhard Ottow (39 patents)
- Rudolf Wiechert (83 patents)
- Guenter Neef (11 patents)
- Juergen Bardenhagen (1 patents)
- Sybille Beier (35 patents)
- Walter Elger (109 patents)
- David Henderson (22 patents)
US Patent 4870069 · Granted Sep 26, 1989