Assignee
Inventors
- Hans-Hermann Heins (3 patents)
- Peter Danz (3 patents)
- Martin Ullrich (25 patents)
- Hanno Henkel (5 patents)
- Klaus Holzer (4 patents)
- Eberhard Zirngiebl (24 patents)
- Siegfried Gruhl (3 patents)
US Patent 5173466 · Granted Dec 22, 1992