Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655472 | Asymmetric bridge | Lennart Hagelstam, Arjo Harjula | 1997-08-12 |
| 5615630 | Stern arrangement for a ship | Arjo Harjula | 1997-04-01 |
| 5609120 | Traction arrangement for a tug boat | — | 1997-03-11 |