Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5765452 | Method for improving the endurance of a blade base of a disc chipper, a blade base of a disc chipper and a disc chipper | Paul Roux, Timothy P. Nettles, Hannu Tahkanen, Arvo Jonkka, Antti Tohkala | 1998-06-16 |
| 5660076 | Drive system of a rotating drum | Arvo Jonkka, Antti Tohkala | 1997-08-26 |