US PATENT SUBCLASS 40 / 443
.~.~ Alternate front and rear illumination

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

427  DF  DISPLAY WITH SPECIAL EFFECTS {5}
442  DF  .~ Selective or intermittent illumination {2}
443.~.~ Alternate front and rear illumination

DEFINITION

Classification: 40/443

Alternate front and rear illumination:

(under subclass 442) Display device having a front and a rear surface, a first display visible to a viewer as ambient or artificial light illuminates the front surface and a second display visible to the viewer as light is passed through the device from the rear.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219, for translucent mirrors which reflect images when light strikes the front thereof and display other pictures or images when light from the rear is passed therethrough.

541, for light source which illuminates signs.

SEE OR SEARCH CLASS

362, Illumination,

35, for revolving illumination device, per se.