US PATENT SUBCLASS 396 / FOR 899
.~.~.~.~ Including gear means (354/259)

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 842  DF  CAMERA DETAILS (354/202) {10}
FOR 866  DF  .~ Shutter (354/226) {10}
FOR 890  DF  .~.~ Pivoting or rotating blade (354/250) {6}
FOR 896  DF  .~.~.~ Having retard means (354/256) {4}
FOR 899.~.~.~.~ Including gear means (354/259)

DEFINITION

Classification: 396/FOR.899

Including gear means: (354/259)

Subject matter under subclass FOR 896 wherein the means to hold a shutter open is provided with one or more protuberances or grooves which interengage and cooperate with mating protuberances on, or grooves in, another member to form therewith a positive force means.