US PATENT SUBCLASS 396 / 471
.~.~ Plural shutters

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
452  DF  .~ Shutter {12}
471.~.~ Plural shutters

DEFINITION

Classification: 396/471

Plural shutters:

(under subclass 452) Subject matter having more than one means to interrupt the light.

(1) Note. The means to interrupt the light are not plural blades for a single opening but means to interrupt the light in more than one plane.

SEE OR SEARCH THIS CLASS, SUBCLASS:

449, for diaphragm shutter.

, FOR 876, for a foreign art collection involving plural shutters.