US PATENT SUBCLASS 355 / 24
.~.~ Duplex


Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

18  DF  PROJECTION PRINTING AND COPYING CAMERAS {27}
23  DF  .~ Copying both sides of original {2}
24.~.~ Duplex


DEFINITION

Classification: 355/24

(under subclass 23) Subject matter wherein the device includes a plurality of optical paths for simultaneously copying the obverse and the reverse sides of the original on either one or on a plurality of photosensitive sheets or strips.