Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847818 | Wristwatch radiotelephone | — | 1989-07-11 |
| 4847820 | Watch attachment | Tom Thinesen, John T. Houlihan, Judith Reichel | 1989-07-11 |
| 4834014 | Floating platform structure | Birger J. Natvig | 1989-05-30 |