Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5367295 | Conventional mechanical lock cylinders and keys with electronic access control feature | Yucel K. Keskin | 1994-11-22 |
| 5337043 | Access control system with mechanical keys which store data | — | 1994-08-09 |