US PATENT SUBCLASS 238 / 145
.~.~ Grooved web

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

122  DF  RAILS {20}
143  DF  .~ Detachable head {4}
145.~.~ Grooved web

DEFINITION

Classification: 238/145

The rail-heads have pairs of projecting webs or single-grooved webs for connection to the rail-bases.