US PATENT SUBCLASS 238 / 49
.~.~.~ Old rail


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

29  DF  TIES {9}
30  DF  .~ Forms {12}
45  DF  .~.~ Special {4}
49.~.~.~ Old rail


DEFINITION

Classification: 238/49

Ties in which old rails are utilized to make up the ties.