Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
Inventor
active
Apparatus and method for light emitting and cold cathode used th
Cold cathode
Cold cathode and cathode ray tube using the cold cathode
Cold cathode density-modulated type electron gun and microwave t
Electron beam radiator with cold cathode integral with focusing
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Profile ID: LFUS-PAI-P-126577