Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438509 | Transducer with tensioned-wire precompression | John L. Butler, Kenneth Rodberg, Arthur E. Clark | 1984-03-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438509 | Transducer with tensioned-wire precompression | John L. Butler, Kenneth Rodberg, Arthur E. Clark | 1984-03-20 |