US PATENT SUBCLASS 246 / 335
.~.~.~ Bow spring

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}
335.~.~.~ Bow spring

DEFINITION

Classification: 246/335

(under subclass 322) Subject matter including devices of the bow-spring type used for actuating switches.

SEE OR SEARCH THIS CLASS, SUBCLASS:

313, for bow-spring type of track-trip.