Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658968 | Percussive rock drill bit and buttons therefor and method for manufacturing drill bit | Johan Linden | 2003-12-09 |
| 6547891 | Elongated percussive rock drilling element | Johan Linden | 2003-04-15 |
| 6508318 | Percussive rock drill bit and buttons therefor and method for manufacturing drill bit | Johan Linden | 2003-01-21 |