US PATENT SUBCLASS 396 / 215
.~.~ To control exposure time

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

213  DF  EXPOSURE CONTROL CIRCUIT {23}
214  DF  .~ Clamp or stop needle control device {2}
215.~.~ To control exposure time

DEFINITION

Classification: 396/215

To control exposure time:

(under subclass 214) Subject matter in which the clamp or stop needle control device regulates exposure time of the shutter.