246 / | HD | RAILWAY SWITCHES AND SIGNALS |
270 R | DF | VEHICLE-ENERGY ACTUATION {11} |
314 | DF | .~ Switches, automatic {6} |
322 | DF | .~.~ Track mechanism {13} |
344 | DF | .~.~.~ Transverse motion {4} |
351 | DF | .~.~.~.~ Vertical motion {3} |
353 | DF | .~.~.~.~.~ Swinging {2} |
354 | .~.~.~.~.~.~ Double acting |