Assignee
Inventors
- Wolfram Kalt (10 patents)
- Heinrich Firgo (47 patents)
- Johann Manner (21 patents)
- Eduard Mulleder (8 patents)
- Bruno Mangeng (5 patents)
- Arnold Nigsch (3 patents)
- Franz Schwenninger (10 patents)
- Christoph Schrempf (24 patents)
US Patent 5628941 · Granted May 13, 1997