US PATENT SUBCLASS 355 / 41
.~.~ Including photocell

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

18  DF  PROJECTION PRINTING AND COPYING CAMERAS {27}
40  DF  .~ Identifying, composing, or selecting {3}
41.~.~ Including photocell

DEFINITION

Classification: 355/41

(under subclass 40) Subject matter including a photocell and related electrical circuits.

SEE OR SEARCH THIS CLASS, SUBCLASS:

38, for a multicolor projection copier with means to regulate light intensity or exposure time utilizing a photocell or phototube.

68, for a projection copier in general with photocell or phototube means in the illumination system.