Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611694 | Thread device, thread joint and drill string component for percussive rock drilling | Alexander Beronius | 2017-04-04 |
| 7152699 | Connection rod and method for production thereof | — | 2006-12-26 |
| 5785360 | Thread coupling for drill string elements for percussive drilling | Karl-Axel Stjernstrom | 1998-07-28 |