US PATENT SUBCLASS 396 / 134
.~.~ Backlash or jam detection

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
133  DF  .~ Lens drive circuit or motor structure {2}
134.~.~ Backlash or jam detection

DEFINITION

Classification: 396/134

Backlash or jam detection:

(under subclass 133) Subject matter which includes means to correct a deviation that occurs in the displacement of the exposure objective or to detect a malfunction of the exposure objective adjusting means.