This subclass is indented 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.
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