US PATENT SUBCLASS 238 / 290
.~ Lap

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


238 /   HD   RAILWAYS: SURFACE TRACK

287  DF  TIE-PLATES {16}
290.~ Lap {1}
291  DF  .~.~> Interlock

DEFINITION

Classification: 238/290

Tie-plates each composed of a plurality of sections overlapping each other or having laterally-lapping parts in a horizontal plane.