US PATENT SUBCLASS 396 / 499
.~.~.~.~ Having pneumatic actuator

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
452  DF  .~ Shutter {12}
493  DF  .~.~ Pivoting or rotating blade type {3}
497  DF  .~.~.~ Plural oscillating blades {4}
499.~.~.~.~ Having pneumatic actuator

DEFINITION

Classification: 396/499

Having pneumatic actuator:

(under subclass 497) Subject matter wherein the blades are moved by gas pressure means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

184, for illumination means combined with pneumatic shutter actuating means.

, FOR 903, for a foreign art collection involving a shutter having plural oscillating blades and a pneumatic actuator.