Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351172 | Cylinder lock mechanism | — | 1982-09-28 |
| 4317347 | Cylinder lock | Paavo Piiroinen | 1982-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351172 | Cylinder lock mechanism | — | 1982-09-28 |
| 4317347 | Cylinder lock | Paavo Piiroinen | 1982-03-02 |