US PATENT SUBCLASS 396 / 453
.~.~ Having braking or damping

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
452  DF  .~ Shutter {12}
453.~.~ Having braking or damping {3}
454  DF  .~.~.~> Having braking or damping member in path of shutter
455  DF  .~.~.~> Having pneumatic or electromagnetic braking or damping
456  DF  .~.~.~> Of focal plane shutter

DEFINITION

Classification: 396/453

Having braking or damping:

(under subclass 452) Subject matter comprising means to slow

the speed of the light interrupting member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

235, for exposure control circuit with velocity control of shutter or diaphragm component.

, FOR 892, for a foreign art collection involving camera shutter having pivoting or rotating blade and brake means.