US PATENT SUBCLASS 396 / 510
.~.~ Plural pivoted blades

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
505  DF  .~ Diaphragm {5}
510.~.~ Plural pivoted blades

DEFINITION

Classification: 396/510

Plural pivoted blades:

(under subclass 505) Subject matter comprising more than one blade and means to restrain a motion of the blade to an arcuate path.