Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213071 | Oxygen filled, sealed housing for piezoceramic electroacoustic transducer | — | 1980-07-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213071 | Oxygen filled, sealed housing for piezoceramic electroacoustic transducer | — | 1980-07-15 |