US PATENT SUBCLASS 246 / 312
.~.~.~.~ Rectilinear

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

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
292  DF  .~ Signals and gates, automatic {2}
297  DF  .~.~ Track mechanism {7}
311  DF  .~.~.~ Longitudinal motion {1}
312.~.~.~.~ Rectilinear

DEFINITION

Classification: 246/312

(under subclass 311) Subject matter having track devices which move in right lines parallel to the traction-rails.