US PATENT SUBCLASS 396 / FOR 711
.~ Nonphotoelectric exposure control type (354/411)

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396 /   HD   PHOTOGRAPHY

FOR 710  DF  AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 711.~ Nonphotoelectric exposure control type (354/411)

DEFINITION

Classification: 396/FOR.711

Nonphotoelectric exposure control type: (354/411)

Subject matter under subclass FOR 710 having a radiant energy responsive device which does not employ the photoelectric effect (e.g., comparison photometer).