US PATENT SUBCLASS 379 / 14
.~.~ Of plural exchange network


Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

1  DF  DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT {12}
9  DF  .~ Of centralized switching system {6}
14.~.~ Of plural exchange network


DEFINITION

Classification: 379/14

Of plural exchange network:

(under subclass 9) Subject matter wherein a plurality of switching offices facilities are tested.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219+, for a plural exchange telephone network.