US PATENT SUBCLASS 238 / 312
.~ Protective boxes and closures

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

310  DF  FASTENINGS {12}
312.~ Protective boxes and closures

DEFINITION

Classification: 238/312

Boxes and closures for protection of rail-joints and other

track elements.

(1) Note. For protective devices limited to the protection of rail-bonds, see this class, subclass 14.9.