US PATENT SUBCLASS 355 / 34
.~.~.~ Including detailed diaphragm

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

18  DF  PROJECTION PRINTING AND COPYING CAMERAS {27}
32  DF  .~ Multicolor picture {2}
33  DF  .~.~ Lenticular film {1}
34.~.~.~ Including detailed diaphragm

DEFINITION

Classification: 355/34

(under subclass 33) Subject matter including detailed structure for limiting the size or shape of the aperture of the optical system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71, for a projection printing or copying camera with diaphragm in the illumination system.