US PATENT SUBCLASS 355 / 73
.~.~ Including vacuum or fluid pressure


Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

18  DF  PROJECTION PRINTING AND COPYING CAMERAS {27}
72  DF  .~ Detailed holder for photosensitive paper {2}
73.~.~ Including vacuum or fluid pressure


DEFINITION

Classification: 355/73

(under subclass 72) Subject matter wherein the photos:graphic paper is held by air or atmospheric pressure caused either by forming a partial vacuum on one side of the paper or by blowing air against the paper.

SEE OR SEARCH THIS CLASS, SUBCLASS:

76, for vacuum, fluid, or spring pressure meant for holder of original.

SEE OR SEARCH CLASS

248, Supports,

362, and 363 for vacuum holddown devices of general utility.