Patent US 3483488A
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| Patent number | US 3483488A (click link for details and documents via Google Patents) |
|---|---|
| Title | Balanced modulator-demodulator circuit with negative feedback in switching element |
| Inventors | Phil Crosby |
| Company | Tektronix Inc |
| Filing date | 1967-10-12 |
| Grant date | 1969-12-09 |