Patent US 4190834A
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| Patent number | US 4190834A (click link for details and documents via Google Patents) |
|---|---|
| Title | Circuit and method for producing a full-screen cross-hair cursor on a raster-scan type display |
| Inventors | Douglas J. Doornink |
| Company | Tektronix Inc |
| Filing date | 1978-10-16 |
| Grant date | 1980-02-26 |