US PATENT SUBCLASS 238 / 38
.~.~ Twin

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

29  DF  TIES {9}
30  DF  .~ Forms {12}
38.~.~ Twin

DEFINITION

Classification: 238/38

The tie is made up of twin or duplicate longitudinal members usually so connected as to lock the rails thereto.