Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309152 | Security system with membrane switches to detect binary code on mechanical key | — | 1994-05-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309152 | Security system with membrane switches to detect binary code on mechanical key | — | 1994-05-03 |