Assignee
Inventors
- Wolf-Dieter Balzer (14 patents)
- Hans-Heinrich Bechtolsheimer (8 patents)
- Karl-Heinz Beyer (19 patents)
- Rolf Fikentscher (50 patents)
- Johannes Perner (43 patents)
- Rudi Widder (15 patents)
- Helmut Wolf (39 patents)
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Skip to contentUS Patent 4693848 · Granted Sep 15, 1987