US PATENT SUBCLASS 379 / 323
.~.~ Power to switching equipment

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
322  DF  .~ Power supply {2}
323.~.~ Power to switching equipment

DEFINITION

Classification: 379/323

Power to switching equipment:

(under subclass 322) Subject matter which supplies electricity to the centralized switching equipment.