US PATENT SUBCLASS 379 / 247
.~.~.~ With display

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
245  DF  .~ Identification {1}
246  DF  .~.~ Of line or trunk {3}
247.~.~.~ With display

DEFINITION

Classification: 379/247

With display:

(under subclass 246) Subject matter for providing a visual indication of the line or trunk used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

142, for a calling number display at a called substation.