US PATENT SUBCLASS 379 / 183
.~.~ Station identification

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

177  DF  POLYSTATION LINE SYSTEM (I.E., PARTY LINE) {6}
182  DF  .~ Automatic or unattended {2}
183.~.~ Station identification

DEFINITION

Classification: 379/183

Station identification:

(under subclass 182) Subject matter which further ascertains the identity of a calling station.