Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4602287 | Intermediate frequency filter with Nyquist phase modulation correction | — | 1986-07-22 |
| 4405944 | TV Sound transmission system | Carl G. Eilers | 1983-09-20 |
| 4339772 | TV Sound Transmission system | Carl G. Eilers | 1982-07-13 |