Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938288 | Automatic control system and method for a machine used for excavating drifts, tunnels, stopes, or caverns | Jacques Andre Saint-Pierre, Everett James Henderson, Guy Chevrette, Peter Heinrich Hennecke, Wilfried Piefenbrink +1 more | 1999-08-17 |