US PATENT SUBCLASS 379 / 173
.~ 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}
173.~ With call addressing

DEFINITION

Classification: 379/173

With call addressing:

(under subclass 167) Subject matter in which the originating station generates a signal representing the called station which signal actuates equipment to cause the desired connection.