US PATENT SUBCLASS 246 / 295
.~.~.~ Audible

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}
293  DF  .~.~ Highway crossing {2}
295.~.~.~ Audible {1}
296  DF  .~.~.~.~> Bells, single stroke

DEFINITION

Classification: 246/295

(under subclass 293) Subject matter including audible highway-crossing signals.