US PATENT SUBCLASS 40 / 548
.~ Polarized

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

541  DF  ILLUMINATED SIGN {13}
548.~ Polarized

DEFINITION

Classification: 40/548

Polarized:

(under subclass 541) Sign wherein the light rays from the source of illumination pass through a polarizer which acts to direct the light rays in a definite direction or filter out light rays from a definite direction.