Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8366201 | Method for open pit bench mining | Garry Drummond, Harold Anderson | 2013-02-05 |
| 7726465 | Method and apparatus for open pit bench mining | Garry Drummond, Harold Anderson | 2010-06-01 |