Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358085 | Keying means for segmented end ring blowout preventer | Bruce J. Watkins | 1982-11-09 |
| 4345735 | Blowout preventer | — | 1982-08-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358085 | Keying means for segmented end ring blowout preventer | Bruce J. Watkins | 1982-11-09 |
| 4345735 | Blowout preventer | — | 1982-08-24 |