Assignee
Inventors
- Armin Olschewski (133 patents)
- Robert Stolz (21 patents)
- Josef Stork (9 patents)
- Heinz Kiener (10 patents)
- Georg Hochrein (1 patents)
- Sven Benktander (3 patents)
- Henri Haller (1 patents)
- Hendrikus Jan Kapaan (44 patents)
US Patent 4946296 · Granted Aug 7, 1990