Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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31/00
Cathode ray tubes; Electron beam tubes
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H01J31/08
having a screen on or from which an image or pattern is formed, picked up, converted, or stored
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H01J31/26
Image pick-up tubes having an input of visible light and electric output
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H01J31/28
with electron ray scanning the image screen
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H01J31/30
having regulation of screen potential at anode potential, e.g. iconoscope
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