Assignee
Inventors
- Unknown
- Kurt Stach (4 patents)
- by Werner Plattner, administrator (2 patents)
- Max Thiel (13 patents)
- Wolfgang Bartsch (25 patents)
- Karl Dietmann (8 patents)
- Egon Roesch (13 patents)
- Wolfgang Schaumann (15 patents)
US Patent 4229464 · Granted Oct 21, 1980