Assignee
Inventors
- Eric Kammerer (6 patents)
- Lothar Biering (2 patents)
- Erhard Grohs (2 patents)
- Klaus Groht (2 patents)
- Conrad Reynvaan (5 patents)
- Horst Siegmund (1 patents)
- Jorgen Spangenberg (1 patents)
- Arwed Uecker (4 patents)
US Patent 5701046 · Granted Dec 23, 1997