US PATENT SUBCLASS 379 / 18
.~.~.~ By use of call address signal

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}
15  DF  .~.~ Of automatic switching equipment {4}
18.~.~.~ By use of call address signal

DEFINITION

Classification: 379/18

By use of call address signal:

(under subclass 15) Subject matter which generates a selective switching control signal specifying a called station address.

SEE OR SEARCH THIS CLASS, SUBCLASS:

352+, for telephone call address signal generating, in

general.