Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831599 | Float for use in seismic surveys of the sea bed | Einar Gjestrum | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831599 | Float for use in seismic surveys of the sea bed | Einar Gjestrum | 1989-05-16 |