Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4764907 | Underwater transducer | David K. Dahlstrom, Merrill E. Fife | 1988-08-16 |
| 4709361 | Flexural disk transducer | David K. Dahlstrom, Merrill E. Fife | 1987-11-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4764907 | Underwater transducer | David K. Dahlstrom, Merrill E. Fife | 1988-08-16 |
| 4709361 | Flexural disk transducer | David K. Dahlstrom, Merrill E. Fife | 1987-11-24 |