| 313 / | HD | ELECTRIC LAMP AND DISCHARGE DEVICES |
| 238 | DF | WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD {9} |
| 239 | DF | .~ For shield {2} |
| 240 | DF | .~.~ Shield supported by electrode, electrode support, or spacer {1} |
| 241 | ![]() | .~.~.~ Extending across ends of plural discharge device electrodes |