Assignee
Inventors
- Rolf Behrens (2 patents)
- Hermann Jendricke (4 patents)
- Manfred Sauer (14 patents)
- Klaus-Dieter Frerichs (6 patents)
- Alfred Keiter (6 patents)
- Andreas Wesselhoft (2 patents)
- Hans-Peter Heins (4 patents)
- Heinz Lange (12 patents)
US Patent 4780010 · Granted Oct 25, 1988