Assignee
Inventors
- Michel Grenier (7 patents)
- Jean-Etienne de la Gorge (1 patents)
- Daniel Cieplinski (3 patents)
- Gerard Leturgie (2 patents)
- Yves Thurin (1 patents)
- Laurent Meret (3 patents)
- Christian Doireau (2 patents)
US Patent 4921076 · Granted May 1, 1990