US PATENT SUBCLASS 396 / 250
.~.~ With digital counter
Current as of:
June, 1999
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396 /
HD
PHOTOGRAPHY
213
DF
EXPOSURE CONTROL CIRCUIT
{23}
246
DF
.~ Shutter speed function only {6}
250
.~.~ With digital counter
DEFINITION
Classification: 396/250
With digital counter:
(under subclass 246) Subject matter in which the exposure control circuit contains a digital counter or register.
SEE OR SEARCH CLASS
377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems, appropriate subclasses for an electrical counter, per se.