| 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} |