Patent US 4188563A
Patent number | US 4188563A (click link for details and documents via Google Patents) |
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Title | Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens |
Inventors | Bozidar Janko |
Company | Tektronix Inc |
Filing date | 1978-08-31 |
Grant date | 1980-02-12 |