Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693638 | Roof bolt assembly having a sealing plug for preventing a deterioration of the mine roof | Edward D. Thompson, Samir K. Nandy | 1987-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693638 | Roof bolt assembly having a sealing plug for preventing a deterioration of the mine roof | Edward D. Thompson, Samir K. Nandy | 1987-09-15 |