US PATENT SUBCLASS 238 / 144
.~.~ Lap web

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

122  DF  RAILS {20}
143  DF  .~ Detachable head {4}
144.~.~ Lap web

DEFINITION

Classification: 238/144

Compound rails in which the heads and bases each have projecting webs, which are lap-connected.