Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841192 | Piezoelectric hydrophone | Per J. Tetlie, Hans N. Brudal | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841192 | Piezoelectric hydrophone | Per J. Tetlie, Hans N. Brudal | 1989-06-20 |