(under subclass 439) Subject matter wherein the record is sensed by completing an electrical circuit at different locations on the record where coded indicia exist, each location representative of and conveying different information.
(1) Note. Including here are devices that complete an electrical circuit through conductive surface marks placed on the record.
SEE OR SEARCH THIS CLASS, SUBCLASS:
492, for records, per se, encoded with conductive markings.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers,
46, for means to complete a circuit in accordance with a patterned sheet.
