Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758288 | Rotary-percussion electrical tool | Martin Richter, Konrad Artmann | 2004-07-06 |
| 6719072 | Suction drill unit for dowel anchorage in rock | Tim Pröls | 2004-04-13 |
| 6712163 | Rock drilling tool | Werner Kleine, Udo Hauptmann, Martin Richter | 2004-03-30 |
| 6675917 | Twist drill bit for rock drilling | Werner Kleine | 2004-01-13 |