US PATENT SUBCLASS 246 / 337
.~.~.~.~ Train-trip elevation

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
314  DF  .~ Switches, automatic {6}
322  DF  .~.~ Track mechanism {13}
336  DF  .~.~.~ Longitudinal motion {4}
337.~.~.~.~ Train-trip elevation

DEFINITION

Classification: 246/337

(under subclass 336) Subject matter in which the track device releases the train-trip by causing its elevation.