US PATENT SUBCLASS 238 / 4
.~.~ Metallic

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

2  DF  ROADBED {4}
3  DF  .~ Highway track {2}
4.~.~ Metallic

DEFINITION

Classification: 238/4

(under subclass 3) Structure that is restricted to track using metallic rails or paths for the wheels.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles,

544+, for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct or material.