Patent US 3268659A
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| Patent number | US 3268659A (click link for details and documents via Google Patents) |
|---|---|
| Title | Apparatus for edge lighting internal graticule of cathode ray tube |
| Inventors | Chuck Gibson |
| Company | Tektronix Inc |
| Filing date | 1963-06-13 |
| Grant date | 1966-08-23 |