Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440448 | Method for opening mineral deposit and subsequent mining thereof | Torsten Noren | 1984-04-03 |
| 4377353 | Method of selective underground mining and stabilization of rock cavities | Torsten Noren | 1983-03-22 |