Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D301841 | Depth finder | — | 1989-06-27 |
| 4797636 | Radio receiver | Nobuaki Yokoyama | 1989-01-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D301841 | Depth finder | — | 1989-06-27 |
| 4797636 | Radio receiver | Nobuaki Yokoyama | 1989-01-10 |