Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649729 | Method for manufacturing steel bar with intermittent smooth surface and patterned relief segments, and mine roof bolt product | George S. Vass | 1987-03-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649729 | Method for manufacturing steel bar with intermittent smooth surface and patterned relief segments, and mine roof bolt product | George S. Vass | 1987-03-17 |