Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6006629 | Automatic chain sharpening device mounted on a chain saw | — | 1999-12-28 |
| 5797187 | Chain saw guide bar having dye-emitting nozzles | Arvo Leini, Karl-Olof Pettersson | 1998-08-25 |
| 5426854 | Chain saw guide bar with liquid spray device | Arvo Leini, Karl-Olof Pettersson, Staffan Lindberg | 1995-06-27 |