Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5083448 | Electromechanical door lock | Vesa Karkkainen | 1992-01-28 |
| 4902053 | Door lock | Reijo Hakkarainen, Paavo Piiroinen | 1990-02-20 |
| 4445299 | Arrangement in doors | Kyosti Nevalainen | 1984-05-01 |