US PATENT SUBCLASS 33 / 338
.~ Railway rail spacing and inclination

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
338.~ Railway rail spacing and inclination

DEFINITION

Classification: 33/338

(under subclass 300) Device provided with means for determining the gauge and level of a railway track.