US PATENT SUBCLASS 40 / 363
.~.~ With external light source (e.g., with translucent window opposite viewing lens)

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

361  DF  PHOTOGRAPHIC TRANSPARENCY VIEWER, E.G., X-RAY VIEWER {2}
362  DF  .~ Hand held slide viewer {1}
363.~.~ With external light source (e.g., with translucent window opposite viewing lens) {2}
364  DF  .~.~.~> Strip film viewer
365  DF  .~.~.~> Folding or collapsible film viewer

DEFINITION

Classification: 40/363

With external light source (e.g., with translucent window opposite viewing lens):

(under subclass 362) Device wherein the illuminating originates outside of the device to render the slide visible to the viewer eye.