US PATENT SUBCLASS 238 / 127
.~ Channel

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

122  DF  RAILS {20}
127.~ Channel {1}
128  DF  .~.~> Integral

DEFINITION

Classification: 238/127

Rails which in cross-section are of inverted U, V, or arc shaped sections.