US PATENT SUBCLASS 40 / 562
.~.~.~ With auxilliary light source

Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

541  DF  ILLUMINATED SIGN {13}
559  DF  .~ External light source {2}
561  DF  .~.~ Concentration of natural light {1}
562.~.~.~ With auxilliary light source

DEFINITION

Classification: 40/562

With auxiliary light source:

(under subclass 561) Sign wherein there is an auxiliary (additional) light source within the housing of the sign whereby the sign may function at night or in the absence of sunlight.