313 / | HD | ELECTRIC LAMP AND DISCHARGE DEVICES |
567 | DF | WITH GAS OR VAPOR {24} |
581 | DF | .~ Three or more electrode discharge device {9} |
582 | DF | .~.~ Multiple gaseous discharge display panel {2} |
584 | .~.~.~ Having intersecting electrode sets {2} | |
585 | DF | .~.~.~.~> With three sets of electrodes |
586 | DF | .~.~.~.~> With dielectric member {1} |