Assignee
Inventors
- Wilhelm Albrecht (4 patents)
- Dieter Wurz (26 patents)
- Karl Peitsmeier (18 patents)
- Heinz Waldschutz (2 patents)
- Walter Ruckert (2 patents)
- Klaus-Peter Kuhn (17 patents)
- Helmut Patzelt (21 patents)
US Patent 4644817 · Granted Feb 24, 1987