US PATENT SUBCLASS 396 / FOR 901
.~.~.~ Plural oscillating blades (354/261)

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 890  DF  .~.~ Pivoting or rotating blade (354/250) {6}
FOR 901.~.~.~ Plural oscillating blades (354/261) {4}
FOR 902  DF  .~.~.~.~> Having gear means (354/262)
FOR 903  DF  .~.~.~.~> Having pneumatic actuator (354/263)
FOR 904  DF  .~.~.~.~> Symmetrical opening (354/264)
FOR 905  DF  .~.~.~.~> Opposite movement (354/265)

DEFINITION

Classification: 396/FOR.901

Plural oscillating blades: (354/261)

Subject matter under subclass FOR 890 wherein there are two

or more blades that are rotatably reciprocated about a fixed axis from an open to a closed position.