Patent US 3712998A
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| Patent number | US 3712998A (click link for details and documents via Google Patents) |
|---|---|
| Title | Cathode ray tube for producing variable sized displays |
| Inventors | Michael S. Mauck |
| Company | Tektronix Inc |
| Filing date | 1970-10-21 |
| Grant date | 1973-01-23 |