Patent US 4704558A
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| Patent number | US 4704558A (click link for details and documents via Google Patents) |
|---|---|
| Title | Method and apparatus for automatic oscilloscope calibration |
| Inventors | John Addis, Dave Morgan |
| Company | Tektronix Inc |
| Filing date | 1985-12-02 |
| Grant date | 1987-11-03 |