Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870411 | Coded locking device, more especially with keyboard | Jacques Lewiner | 1989-09-26 |
| 4857913 | Coded objects identifiable by proximity and devices for changing the codes of these objects | Jacques Lewiner, Didier Leonard | 1989-08-15 |