US PATENT SUBCLASS 396 / FOR 869
.~.~.~ Plural apertured diaphragm (354/229)

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 842  DF  CAMERA DETAILS (354/202) {10}
FOR 866  DF  .~ Shutter (354/226) {10}
FOR 868  DF  .~.~ Having diaphragm (354/228) {4}
FOR 869.~.~.~ Plural apertured diaphragm (354/229)

DEFINITION

Classification: 396/FOR.869

Plural apertured diaphragm: (354/229)

Subject matter under subclass FOR 868 including more than one opening to control the light.