Patent US 4703447A
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| Patent number | US 4703447A |
|---|---|
| Title | Mixer controlled variable passband finite impulse response filter |
| Inventors | David E. Lake Jr. |
| Company | The Grass Valley Group, Inc. |
| Filing date | 1985-04-05 |
| Grant date | 1987-10-27 |
| Cites |