US PATENT SUBCLASS 379 / 246
.~.~ Of line or trunk

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
245  DF  .~ Identification {1}
246.~.~ Of line or trunk {3}
247  DF  .~.~.~> With display
248  DF  .~.~.~> Using matrix
249  DF  .~.~.~> For nuisance call mitigation

DEFINITION

Classification: 379/246

Of line or trunk:

(under subclass 245) Subject matter wherein the identified component is a telephone signal conductor unique to a terminal station or concentrator.