US PATENT SUBCLASS 238 / 55
.~.~ Two-part

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

29  DF  TIES {9}
54  DF  .~ Cross section {6}
55.~.~ Two-part {3}
56  DF  .~.~.~> Channels
57  DF  .~.~.~> I-beam
58  DF  .~.~.~> Angles or T's

DEFINITION

Classification: 238/55

Ties made up of two longitudinal parts of cross-sectional form not otherwise classified below.

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