US PATENT SUBCLASS 359 / 468
.~.~.~ Picture moves linearly past viewing aperture

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  DF  .~.~ View changers {1}
468.~.~.~ Picture moves linearly past viewing aperture {1}
469  DF  .~.~.~.~> Using film strips

DEFINITION

Classification: 359/468

Picture moves linearly past viewing aperture:

(under subclass 467) Subject matter wherein the slide or picture being viewed moves linearly past the viewing aperture, i.e., each point on the picture generates a straight line as it passes the aperture.