US PATENT SUBCLASS 238 / 381
.~ Wheel-depressed

Current as of: June, 1999
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238 /   HD   RAILWAYS: SURFACE TRACK

379  DF  FOOT GUARDS {2}
381.~ Wheel-depressed

DEFINITION

Classification: 238/381

Foot-guards which yield and are depressed by the passage of a wheel-flange thereover, but which will not be depressed when stepped upon.