US PATENT SUBCLASS 313 / 484
.~ With gaseous discharge medium

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

483  DF  WITH LUMINESCENT SOLID OR LIQUID MATERIAL {4}
484.~ With gaseous discharge medium {1}
485  DF  .~.~> Phosphor on envelope wall {6}

DEFINITION

Classification: 313/484

(under subclass 483) Subject matter including a gaseous medium in which a discharge is developed.