US PATENT SUBCLASS 396 / 512
.~.~ Film cassette or cartridge

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.~.~ Film cassette or cartridge {4}
513  DF  .~.~.~> Light seal
514  DF  .~.~.~> Film or spool locking means
515  DF  .~.~.~> Including film use indicator
516  DF  .~.~.~> Thrust type

DEFINITION

Classification: 396/512

Film cassette or cartridge:

(under subclass 511) Subject matter having the light-tight enclosure containing a supply spool such that the entire enclosure including the spool is removable and insertable as a unit.