US PATENT SUBCLASS 246 / 351
.~.~.~.~ Vertical motion

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}
344  DF  .~.~.~ Transverse motion {4}
351.~.~.~.~ Vertical motion {3}
352  DF  .~.~.~.~.~> Duplex lever
353  DF  .~.~.~.~.~> Swinging {2}
356  DF  .~.~.~.~.~> Double {1}

DEFINITION

Classification: 246/351

(under subclass 344) Subject matter having switches which are actuated by vertically-moving track devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302, 307+, 313, 351+, for vertically-moving track devices.