Pressure compensating device for a plasma display panel
Pulsed cesium discharge light source
Regulatable field emitter device and method of production thereo
Segmented electrode type gas discharge display panel with mercur
Sintered electrode in a discharge tube
Surface breakdown igniter for mercury arc devices
Tungsten/bromine cycle lamp
Universal burning alkali metal vapor lamp with amalgam storage i
Universal burning ceramic lamp
Universal burning ceramic lamp
Valve means and mercury reservoir for gas discharge display
Wide channel getter device