US PATENT SUBCLASS 40 / 559
.~ External light source

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

541  DF  ILLUMINATED SIGN {13}
559.~ External light source {2}
560  DF  .~.~> Projected
561  DF  .~.~> Concentration of natural light {1}

DEFINITION

Classification: 40/559

External light source:

(under subclass 541) Sign wherein the light source is external to the sign housing.