US PATENT SUBCLASS 238 / 188
.~.~ Twin

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

151  DF  RAIL JOINTS {28}
187  DF  .~ Chair {3}
188.~.~ Twin {5}
189  DF  .~.~.~> Base stiffener
190  DF  .~.~.~> With base plate
191  DF  .~.~.~> Base-bolted
192  DF  .~.~.~> Lapping base sections
193  DF  .~.~.~> Interlocked base sections {1}

DEFINITION

Classification: 238/188

(under subclass 187) except the joint members are in two similar sections with their base-sections each extending underneath the rail-bases.

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