US PATENT SUBCLASS 238 / 39
.~.~ Complementary sliding lock

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

29  DF  TIES {9}
30  DF  .~ Forms {12}
39.~.~ Complementary sliding lock

DEFINITION

Classification: 238/39

Ties made up of two longitudinal sections, one of which is the complement of the other. Usually one slides into the other. The reciprocal sliding of the two parts locks the rail in place.