US PATENT SUBCLASS 379 / 172
.~.~ With call addressing


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

167  DF  PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM {6}
171  DF  .~ Having plural stations with selective calling (e.g., master) {1}
172.~.~ With call addressing


DEFINITION

Classification: 379/172

With call addressing:

(under subclass 171) Subject matter in which an originating station generates a signal representing the called station which signal actuates equipment to cause the desired connection.