Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356422 | Acoustic transducer | — | 1982-10-26 |
| 4321552 | Amplifier comprising a first and a second amplifier element | Nico V. Franssen, deceased, Henricus G. J. M. Kockelmans | 1982-03-23 |