Assignee
Inventors
- Gerhard Kretzschmar (30 patents)
- Dieter Duwel (8 patents)
- Susanne Grabley (33 patents)
- Peter Hammann (14 patents)
- Gerhard Seibert (36 patents)
- Hartmut Voelskow (12 patents)
- Carlo Giani (11 patents)
US Patent 5011827 · Granted Apr 30, 1991