Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850743 | Template levelling device | — | 1989-07-25 |
| 4848472 | Insert choke and control module therefor | — | 1989-07-18 |
| 4848475 | Sea bed process complex | Alan J. Dean | 1989-07-18 |
| 4806114 | Underwater electrically conductive coupling | — | 1989-02-21 |