Assignee
Inventors
- Jurgen Curtze (22 patents)
- Helmut Pieper (66 patents)
- Josef Nickl (27 patents)
- Heinz-Manfred Becher (11 patents)
- Guido Albert (33 patents)
- Christo Drandarevski (8 patents)
- Sigmund Lust (11 patents)
- Ludwig Schroder (14 patents)
US Patent 4910200 · Granted Mar 20, 1990