US PATENT SUBCLASS 235 / *
.~.~ Optical (235/454)
Current as of:
June, 1999
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*
DD
CODED RECORD SENSORS (235/435)
{1}
*
DD
.~ Particular sensor structure (235/439) {1}
*
.~.~ Optical (235/454) {1}
FOR 106
DF
.~.~.~
> Hand held (235/472)