Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8272151 | Hoist and drag system for mining | William Ries, Gregory N. Feld, Eric Evenson | 2012-09-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8272151 | Hoist and drag system for mining | William Ries, Gregory N. Feld, Eric Evenson | 2012-09-25 |