Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615932 | Arrangement in rock drilling apparatus | Leo Hakkinen | 2003-09-09 |
| 6253860 | Method and arrangement for controlling rock drilling | Tapani Pöysti | 2001-07-03 |
| 6213223 | Arrangement for supporting rock drilling apparatus | — | 2001-04-10 |