US PATENT SUBCLASS 379 / 167
PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM

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

167PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM {6}
168  DF  .~> Lockout {1}
170  DF  .~> With paging
171  DF  .~> Having plural stations with selective calling (e.g., master) {1}
173  DF  .~> With call addressing
174  DF  .~> Including body or apparel supported terminal (e.g., headgear) {1}
176  DF  .~> With central power source

DEFINITION

Classification: 379/167

PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM:

(under the class definition) Subject matter having (a) a plurality of stations none of which is connected to the public telephone system, (b) two subsets connected by a single line.