Patent US 4684881A
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| Patent number | US 4684881A (click link for details and documents via Google Patents) |
|---|---|
| Title | Low impedance switched attenuator |
| Inventors | Calvin D. Diller, Michael J. Burke |
| Company | Tektronix Inc |
| Filing date | 1986-09-17 |
| Grant date | 1987-08-04 |