US PATENT SUBCLASS 238 / 22
.~ Spacers

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

17  DF  GUARDRAILS {5}
22.~ Spacers {1}
23  DF  .~.~> Tapered

DEFINITION

Classification: 238/22

Spacing-blocks between the main guard rails.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17, and the preceding subclasses under subclass 17.