Patent US 4754329A
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| Patent number | US 4754329A (click link for details and documents via Google Patents) |
|---|---|
| Title | Focusing and screen calibration method for display screen coupled to video camera |
| Inventors | James W. Lindsay, Geoffrey B. Rhoads |
| Company | Tektronix Inc |
| Filing date | 1987-04-13 |
| Grant date | 1988-06-28 |