H - Electricity – 01 – J
Inventor
H - Electricity
01
J
Inventor
Country: United States Of America
Cathode-ray tube having a screen grid with asymmetric beam...
Cathode-ray tube having an asymmetric slot formed in a...
Cathode-ray tube having inline electron gun comprising...
Color picture tube having an expanded focus lens type inline...
Color picture tube having an improved expanded focus lens...
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