US PATENT SUBCLASS 396 / FOR 818
.~ Automatic film advance (354/171)

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 817  DF  MOTOR FILM DRIVE (E.G., SPRING, ETC.) (354/170) {1}
FOR 818.~ Automatic film advance (354/171) {2}
FOR 819  DF  .~.~> Having spring tension indicator (354/172)
FOR 820  DF  .~.~> Having electric motor (354/173.1) {1}

DEFINITION

Classification: 396/FOR.818

Automatic film advance: (354/171)

Subject matter under subclass FOR 817 wherein the light-sensitive material is moved upon each actuation of a shutter by automatic mechanism.