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} |
378 | .~.~.~.~ Having details of control storage arrangement {1} | |
379 | DF | .~.~.~.~.~> Data memory addressing |