US PATENT SUBCLASS 396 / FOR 751
.~.~ Servo motor type (354/451)

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 710  DF  AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 746  DF  .~ Having circuit for controlling diaphragm only (354/446) {7}
FOR 751.~.~ Servo motor type (354/451) {1}
FOR 752  DF  .~.~.~> Using stepping motor (354/452)

DEFINITION

Classification: 396/FOR.751

Servo motor type: (354/451)

Subject matter under subclass FOR 746 in which the circuit contains a feedback section indicative of the specific aperture value which is used to make further adjustment to the aperture.