Assignee
Inventors
- Michael Mueller (30 patents)
- Ekkehard Schwab (100 patents)
- Helmut Auweter (25 patents)
- Rainer Feser (17 patents)
- Bernhard Boettcher (2 patents)
- Norbert Mueller (53 patents)
- Wolfgang Kochanek (6 patents)
US Patent 5064549 · Granted Nov 12, 1991