Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8689595 | Key and disc tumbler cylinder lock | — | 2014-04-08 |
| 5205143 | Cylinder lock | Reijo Hakkarainen, Seija Ramo, Kyosti Nevalainen | 1993-04-27 |
| 4686843 | Cylinderlock-key-combination | Kyosti Nevalainen | 1987-08-18 |
| 4637240 | Cylinder lock | Kyosti Nevalainen | 1987-01-20 |
| 4351172 | Cylinder lock mechanism | — | 1982-09-28 |
| 4317347 | Cylinder lock | Paavo Piiroinen | 1982-03-02 |
| 4267717 | Disc cylinder lock | — | 1981-05-19 |