Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5875857 | Accumulator charging system | Jarmo Leppanen | 1999-03-02 |
| 5794717 | Rock drill percussion mechanism | Jarmo Leppanen | 1998-08-18 |
| 5771981 | Control system for percussion drill | Jarmo Leppanen | 1998-06-30 |
| 5771982 | Rock drill | Jarmo Leppanen | 1998-06-30 |
| 5678642 | Drilling arrangement and drilling feed mechanism | Jarmo Leppanen | 1997-10-21 |
| 5377767 | Hole digger | — | 1995-01-03 |