Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4190937 | Method of manufacturing electroacoustic transducer elements which operate in the vicinity of resonance | — | 1980-03-04 |
| 4190783 | Electroacoustic transducers of the bi-laminar flexural vibrating type with an acoustic delay line | — | 1980-02-26 |
| 4190784 | Piezoelectric electroacoustic transducers of the bi-laminar flexural vibrating type | — | 1980-02-26 |
| 4183011 | Ultrasonic cleaning systems | — | 1980-01-08 |