Patent US 4121183A
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| Patent number | US 4121183A (click link for details and documents via Google Patents) |
|---|---|
| Title | Programmable attenuator apparatus employing active FET switching |
| Inventors | Desmond L. Murphy |
| Company | Tektronix Inc |
| Filing date | 1976-10-29 |
| Grant date | 1978-10-17 |