Assignee
Inventors
- Dieter Coesfeld (1 patents)
- Bernhard Hugemann (4 patents)
- Ludwig Scondo (3 patents)
- Wilhelm Schuster (21 patents)
- Hans D. Schwabe (1 patents)
- Jurgen Stahl (12 patents)
- Klaus Stosser (1 patents)
US Patent 4658644 · Granted Apr 21, 1987