Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7006638 | Electronic stethoscope | Torben Dalgaard | 2006-02-28 |
| 5291346 | Recording and/or play-back system employing a cassette with a memory unit accommodated in the cassette | — | 1994-03-01 |
| 4442434 | Antenna circuit of the negative impedance type | — | 1984-04-10 |