US PATENT SUBCLASS 238 / 309
.~ Spike-shank brace

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

287  DF  TIE-PLATES {16}
309.~ Spike-shank brace

DEFINITION

Classification: 238/309

Tie-plates with means for bracing the spike-shanks.