US PATENT SUBCLASS 379 / 244
.~.~ In common control system

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
243  DF  .~ Class of service determination or transmission {1}
244.~.~ In common control system

DEFINITION

Classification: 379/244

In common control system:

(under subclass 243) Subject matter which supplies a type of service designation in stored number switching equipment.