US PATENT SUBCLASS 246 / 293
.~.~ Highway crossing

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.~.~ Highway crossing {2}
294  DF  .~.~.~> Visual and audible
295  DF  .~.~.~> Audible {1}

DEFINITION

Classification: 246/293

(under subclass 292) Subject matter including signals specially adapted and intended for use at highway-crossings of railways.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111, 125+, 260, and 473, and appropriate indented subclasses, and also under this subclass, for signal structure.