US PATENT SUBCLASS 235 / 439
.~ Particular sensor structure

Current as of: June, 1999
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235 /   HD   REGISTERS

435  DF  CODED RECORD SENSORS {9}
439.~ Particular sensor structure {8}
440  DF  .~.~> Multiple sensor
441  DF  .~.~> Electrical contact {1}
444  DF  .~.~> Electromechanical {2}
449  DF  .~.~> Magnetic {1}
451  DF  .~.~> Capacitive
452  DF  .~.~> Pneumatic
453  DF  .~.~> Mechanical
454  DF  .~.~> Optical {10}

DEFINITION

Classification: 235/439

Particular sensor structure:

(under subclass 435) Subject matter including the particular type of structure utilized to sense the coded indicia on the record.