Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828293 | Wellhead slip and seal assembly | Jerry D. Smith | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828293 | Wellhead slip and seal assembly | Jerry D. Smith | 1989-05-09 |