Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033558 | Well tool for use with down-hole drilling apparatus | Curley J. Vallot, Jr. | 1991-07-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033558 | Well tool for use with down-hole drilling apparatus | Curley J. Vallot, Jr. | 1991-07-23 |