Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219889 | Double mass-loaded high power piezo-electric underwater transducer | Edwin J. Parssinen, John F. White | 1980-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219889 | Double mass-loaded high power piezo-electric underwater transducer | Edwin J. Parssinen, John F. White | 1980-08-26 |