US PATENT SUBCLASS 396 / 449
.~ Diaphragm shutter unit

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
449.~ Diaphragm shutter unit {2}
450  DF  .~.~> Sliding plate
451  DF  .~.~> Between the lens components

DEFINITION

Classification: 396/449

Diaphragm shutter unit:

(under subclass 439) Subject matter comprising a single means to interrupt and control light passing through the lens to a light sensitive material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

471, for plural shutters.

, FOR 870, for a foreign art collection involving a shutter and diaphragm formed from the same pivoted or sliding plates.