US PATENT SUBCLASS 238 / 376
.~.~ Ratchet

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

310  DF  FASTENINGS {12}
366  DF  .~ Spikes {9}
376.~.~ Ratchet

DEFINITION

Classification: 238/376

Ratcheted spikes or bolts adapted for use only with track-fastenings.