Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4234941 | Verbal read-out depth sounding system | Frederick J. Welland, Jr. | 1980-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4234941 | Verbal read-out depth sounding system | Frederick J. Welland, Jr. | 1980-11-18 |