Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4199193 | Underground mining machine having temporary roof support means and roof bolting means associated therewith | Earl M. Damron | 1980-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4199193 | Underground mining machine having temporary roof support means and roof bolting means associated therewith | Earl M. Damron | 1980-04-22 |