Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8118112 | Rock breaking device, protection valve and a method of operating a rock breaking device | — | 2012-02-21 |
| 7152692 | Hydraulic hammer having a sealing bushing | Arvo Hurskainen | 2006-12-26 |
| 5979291 | Hydraulically operated percussion hammer | — | 1999-11-09 |
| 5890548 | Hydraulic percussion hammer | — | 1999-04-06 |
| 5653295 | Hydraulic precussion hammer | Jouni Salo, Kauko Juuri | 1997-08-05 |