US PATENT SUBCLASS 359 / 467
.~.~ View changers

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

462  DF  STEREOSCOPIC {3}
466  DF  .~ Stereo-viewers {8}
467.~.~ View changers {1}
468  DF  .~.~.~> Picture moves linearly past viewing aperture {1}

DEFINITION

Classification: 359/467

View changers:

(under subclass 466) Subject matter including means to

facilitate changing from one stereoscopic slide or picture to another.

SEE OR SEARCH CLASS

40, Card, Picture, or Sign Exhibiting,

446+, for changeable exhibitors in general.

353, Optics: Image Projectors,

92, and 103+ for a slide changer for an image projector.