US PATENT SUBCLASS 40 / 362
.~ Hand held slide viewer

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.~ Hand held slide viewer {1}
363  DF  .~.~> With external light source (e.g., with translucent window opposite viewing lens) {2}

DEFINITION

Classification: 40/362

Hand held slide viewer:

(under subclass 361) Device adapted to be manually supported and operated by the observer.