US PATENT SUBCLASS 246 / 271
.~ Fluid transmission

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

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
271.~ Fluid transmission {1}
272  DF  .~.~> Gates

DEFINITION

Classification: 246/271

(under subclass 270) Subject matter in which power is transmitted from a track-trip to the device actuated by means of a column of fluid.