Assignee
Inventors
- Wolfgang Hoelderich (86 patents)
- Werner Biffar (4 patents)
- Matthias Irgang (31 patents)
- Wolf D. Mross (30 patents)
- Michael Kroener (36 patents)
- Eberhard Ambach (3 patents)
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Skip to contentUS Patent 4711930 · Granted Dec 8, 1987