US PATENT SUBCLASS 396 / 389
.~ Double exposure prevention

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

387  DF  WITH FILM DRIVE {7}
389.~ Double exposure prevention {5}
390  DF  .~.~> Midroll interrupt
391  DF  .~.~> Having manual override
392  DF  .~.~> Having film-sensing member
393  DF  .~.~> Having double cable release
394  DF  .~.~> Responsive to film-winding lever

DEFINITION

Classification: 396/389

Double exposure prevention:

(under subclass 387) Subject matter wherein the camera has some structure which inhibits two superimposed images.

SEE OR SEARCH THIS CLASS, SUBCLASS:

285, for double exposure warning.

, FOR 847+, for foreign art collections involving camera double exposure prevention.