Assignee
No assignee recorded.
Inventors
- Unknown
- Jacqueline S. Laforest nee Boutillier du Retail (2 patents)
- Bernard J. M. Cariou (2 patents)
- Pierre Bessin (11 patents)
- Unknown
- Jean Thuillier (4 patents)
US Patent 4255585 · Granted Mar 10, 1981
No assignee recorded.