Patent US 4525688A
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| Patent number | US 4525688A (click link for details and documents via Google Patents) |
|---|---|
| Title | Oscilloscope signal input circuit including an attenuator |
| Inventors | Desmond L. Murphy, Warren K. Wimmer |
| Company | Tektronix Inc |
| Filing date | 1983-08-01 |
| Grant date | 1985-06-25 |