US PATENT SUBCLASS 235 / 448
.~.~.~ Raised or depressed portions on record

Current as of: June, 1999
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235 /   HD   REGISTERS

435  DF  CODED RECORD SENSORS {9}
439  DF  .~ Particular sensor structure {8}
444  DF  .~.~ Electromechanical {2}
448.~.~.~ Raised or depressed portions on record

DEFINITION

Classification: 235/448

Raised or depressed portions on record:

(under subclass 444) Subject matter wherein the sensing element is moved in accordance with raised or depressed portions of the record, the raised or depressed portions

representing the coded indicia.

(1) Note. Included here are devices that move light shutter elements in accordance with raised or depressed portions. The movement of the shutter elements completing or breaking a light path between a light source and a photocell.

SEE OR SEARCH THIS CLASS, SUBCLASS:

490, for records, per se, encoded with material that projects from the plane of the record.