Patent US 3988690A
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| Patent number | US 3988690A (click link for details and documents via Google Patents) |
|---|---|
| Title | Amplifier circuit having a floating input stage |
| Inventors | Gary Vance, Richard James Ballard |
| Company | Tektronix Inc |
| Filing date | 1973-10-04 |
| Grant date | 1976-10-26 |