Patent US 3873878A
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Patent number | US 3873878A (click link for details and documents via Google Patents) |
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Title | Electron gun with auxilliary anode nearer to grid than to normal anode |
Inventors | Conrad Odenthal |
Company | Tektronix Inc |
Filing date | 1973-01-05 |
Grant date | 1975-03-25 |