US PATENT SUBCLASS 379 / 306
.~.~ With crosspoint switch detail

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
258  DF  .~ Switching controlled in response to called station addressing signal {9}
306.~.~ With crosspoint switch detail

DEFINITION

Classification: 379/306

With crosspoint switch detail:

(under subclass 258) Subject matter having a detail or a switching element of a rectangular switch array.

SEE OR SEARCH THIS CLASS, SUBCLASS:

291, for common control crosspoint switch detail.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

112, for a telephone crossbar switch, per se.

340, Communications: Electrical, 825.79, for details of switching arrays or matrices, not elsewhere classifiable.