Patent US 4613856A
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| Patent number | US 4613856A (click link for details and documents via Google Patents) |
|---|---|
| Title | Character and video mode control circuit |
| Inventors | Daniel C. Olin, Russell Y. Anderson, Steven C. DenBeste |
| Company | Tektronix Inc |
| Filing date | 1983-04-04 |
| Grant date | 1986-09-23 |