Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325076 | Electronic filter for generating a third harmonic signal | Erwin J. Wittmann | 1982-04-13 |
| 4318051 | Symmetrically gain controlled differential amplifier | Erwin J. Wittmann | 1982-03-02 |