US PATENT SUBCLASS 370 / 377
.~.~.~.~ Having supervisory signaling

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

351  DF  PATHFINDING OR ROUTING {5}
357  DF  .~ Through a circuit switch {4}
360  DF  .~.~ Switching control {8}
375  DF  .~.~.~ Time switch, per se (e.g., T or T-T) {3}
377.~.~.~.~ Having supervisory signaling

DEFINITION

Classification: 370/377

Having supervisory signaling:

(under subclass 375) Subject matter wherein control information is communicated between switches to control the switches.