Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6053019 | Arrangement in a lock, especially an electromechanical locking system | Tor S.o slashed.rnes | 2000-04-25 |
| RE36426 | Time controlled lock system | Arild Pettersen, Malyor Aase, Torstein Tonnesson | 1999-12-07 |
| 5260551 | Time controlled lock system | Arild Pettersen, Halvor Aase, Torstein Tonnesson | 1993-11-09 |
| 4562343 | Recodable electronic lock | Arild Pettersen, Thorstein Tonnesson | 1985-12-31 |