US PATENT SUBCLASS 238 / 66
.~.~.~ Rolled

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

29  DF  TIES {9}
54  DF  .~ Cross section {6}
65  DF  .~.~ I-beam {1}
66.~.~.~ Rolled

DEFINITION

Classification: 238/66

(under subclass 65) except that the I-beams are rolled metallic sections.