Assignee
Inventors
- Franz Weingart (11 patents)
- Christa Hackl (1 patents)
- Rudiger Krech (1 patents)
- Stephan Bauer (1 patents)
- Albert Kohl (37 patents)
- Ria Kress (14 patents)
- Josef Schelble (4 patents)
- Hans-Ganther Bohrmann (1 patents)
US Patent 6132880 · Granted Oct 17, 2000