Patent US 4524307A
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| Patent number | US 4524307A (click link for details and documents via Google Patents) |
|---|---|
| Title | Convergence control system for multigun CRT |
| Inventors | Clayton C. Wahlquist |
| Company | Tektronix Inc |
| Filing date | 1982-04-15 |
| Grant date | 1985-06-18 |