Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073936 | Stereophonic microphone system | Rudolf Gorike, Sandor Szabo | 1991-12-17 |
| 5031216 | Device for stereophonic recording of sound events | Rudolf Gorike, Sandor Szabo | 1991-07-09 |