Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347593 | Piezoceramic tubular element with zero end displacement | — | 1982-08-31 |
| 4328569 | Array shading for a broadband constant directivity transducer | Jacek Jarzynski | 1982-05-04 |