US PATENT SUBCLASS 238 / 137
.~ Biped

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

122  DF  RAILS {20}
137.~ Biped

DEFINITION

Classification: 238/137

The rail-heads have single vertical webs bifurcated at the lower portions, forming pairs of diverging webs or feet.