Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877088 | Process and equipment for oil well drilling and completing operations in deep water | Renato S. Rodrigues | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877088 | Process and equipment for oil well drilling and completing operations in deep water | Renato S. Rodrigues | 1989-10-31 |