Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762344 | Well casing connection | Lee E. Perkins | 1988-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762344 | Well casing connection | Lee E. Perkins | 1988-08-09 |