(under subclass 452) Subject matter comprising means to allow a shutter to operate or means to apply a bias or mechanical advantage to effect movement of a shutter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59, for camera release by wireless remote control.
263+, for camera release control circuit.
472+, for mechanically delayed release.
, FOR 906+, for foreign art collections involving a shutter release or actuator.
SEE OR SEARCH CLASS
352, Optics: Motion Pictures, 178, for manual control of a motion picture camera.
