US PATENT SUBCLASS 40 / 434
.~.~.~.~.~ Polarized

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

427  DF  DISPLAY WITH SPECIAL EFFECTS {5}
429  DF  .~ Electromotor operated {2}
430  DF  .~.~ Rotatable {2}
431  DF  .~.~.~ Illuminated {2}
433  DF  .~.~.~.~ Disk {1}
434.~.~.~.~.~ Polarized

DEFINITION

Classification: 40/434

Polarized:

(under subclass 433) Display device wherein the rotating disk(s) acts as a light polarizer, thus masking or filtering light emanating from a specific angle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

548, for illuminated signs which employ polarizing means.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

483+, for nonmodulating polarizing devices.

362, Illumination, 35, for revolving illumination device, per se.