Assignee
Inventors
- Heinrich Aichinger (22 patents)
- Wilhelm Ruppel (32 patents)
- Rolf Seubert (3 patents)
- Karl-Heinz Boehning (9 patents)
- Walter Scheidmeir (4 patents)
- Johannes E. Schmidt (8 patents)
- Matthias Schwarzmann (44 patents)
US Patent 5225574 · Granted Jul 6, 1993