US PATENT SUBCLASS 313 / 515
.~.~ With character-shaped envelope

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

513  DF  WITH CHARACTER DISPLAY (E.G., DIGITS OR LETTERS) {2}
514  DF  .~ Gaseous discharge medium {4}
515.~.~ With character-shaped envelope

DEFINITION

Classification: 313/515

(under subclass 514) Subject matter including an envelope in the shape of a character confining the gaseous discharge medium.