US PATENT SUBCLASS 238 / 358
.~.~.~.~ Through bolt

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

310  DF  FASTENINGS {12}
338  DF  .~ Clamps {13}
355  DF  .~.~ Hooks {2}
357  DF  .~.~.~ Twin {2}
358.~.~.~.~ Through bolt

DEFINITION

Classification: 238/358

(under subclass 357) except that both hooks are held to place by a single through-bolt.