Assignee
Inventors
- Helmut Riemscheid (13 patents)
- Herbert Frielingsdorf (14 patents)
- Heribert Grewe (6 patents)
- Karl Weiss (18 patents)
- Rudolf Schulze (4 patents)
- Engelbert Schwarz (5 patents)
- Helmut Swars (87 patents)
- Arnold Palussek (2 patents)
US Patent 5388814 · Granted Feb 14, 1995