US PATENT SUBCLASS 238 / 286
.~ Spiking blocks

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

264  DF  RAIL SEATS {15}
286.~ Spiking blocks

DEFINITION

Classification: 238/286

Wooden blocks upon which rails are seated and into which the rail-holding spikes or fastening penetrate.