Assignee
Inventors
- Gerhard Frank (7 patents)
- Peter Rudolf (86 patents)
- Gerald Neubauer (27 patents)
- Paul Duffner (4 patents)
- Manfred Ohlinger (30 patents)
- Hans J. Wilfinger (7 patents)
- Emil Pfannebecker (3 patents)
US Patent 4492804 · Granted Jan 8, 1985