Assignee
Inventors
- Dieter Jahn (43 patents)
- Rainer Becker (110 patents)
- Michael Keil (121 patents)
- Ulrich Schirmer (64 patents)
- Winfried Richarz (13 patents)
- Bruno Wuerzer (235 patents)
- Norbert Meyer (103 patents)
US Patent 4761172 · Granted Aug 2, 1988