US PATENT SUBCLASS 238 / 233
.~.~.~ With vertical drop

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

151  DF  RAIL JOINTS {28}
230  DF  .~ Scarf {5}
231  DF  .~.~ Longitudinally assembled {2}
233.~.~.~ With vertical drop

DEFINITION

Classification: 238/233

The specially-formed rail ends are assembled by longitudinal movement supplemented with a vertical drop by one of the rail ends.