Patent US 4142128A
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| Patent number | US 4142128A |
|---|---|
| Title | Box-shaped scan expansion lens for cathode ray tube |
| Inventors | Conrad Odenthal |
| Company | Tektronix Inc |
| Filing date | 1977-04-18 |
| Grant date | 1979-02-27 |
| Cites |
See T7100.