Electric lamp and discharge devices
Electrode and shield structures
Cathodes containing and/or coated with electron emissive...
Inventor
active
Cathode assembly incorporating a black layer formed from particl
Cathode assembly, electron gun assembly, electron tube, heater,
Cathode structure for electron tube
Directly heated cathode assembly
Directly heated type cathode assembly
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Profile ID: LFUS-PAI-P-585737