Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873676 | Sonar depth sounder apparatus | Robert R. Gibson, Alvin Nunley, III, Q. Wayne Utz | 1989-10-10 |
| 4829493 | Sonar fish and bottom finder and display | — | 1989-05-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873676 | Sonar depth sounder apparatus | Robert R. Gibson, Alvin Nunley, III, Q. Wayne Utz | 1989-10-10 |
| 4829493 | Sonar fish and bottom finder and display | — | 1989-05-09 |