US PATENT SUBCLASS 396 / 515
.~.~.~ Including film use indicator

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
511  DF  .~ Detachable or removable film holder unit {2}
512  DF  .~.~ Film cassette or cartridge {4}
515.~.~.~ Including film use indicator

DEFINITION

Classification: 396/515

Including film use indicator:

(under subclass 512) Subject matter having means integral with the light-tight enclosure providing a demonstration of an exposure status of the film.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281, for camera indicator.