Electric lamp and discharge devices
With support and/or spacing structure for electrode and/or...
For indirectly heated cathode
Inventor
active
Assembly of organic electroluminescence display device
Cathode for an electron gun
Cathode for an electron gun
Cathode material including rare earth metal used as electron...
Cathode material of electron beam device and preparation...
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Profile ID: LFUS-PAI-P-1159451