Assignee
Inventors
- Gerhard Hamprecht (198 patents)
- Horst Mayer (30 patents)
- Karl-Otto Westphalen (265 patents)
- Helmut Walter (219 patents)
- Matthias Gerber (92 patents)
- Klaus Grossmann (33 patents)
- Wilhelm Rademacher (64 patents)
US Patent 5188657 · Granted Feb 23, 1993