Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314365 | Acoustic transmitter and method to produce essentially longitudinal, acoustic waves | Clifford W. Petersen, John M. Bednar, Edwin J. Hocker, Jr., David H. Gauger | 1982-02-02 |