US PATENT SUBCLASS 33 / 523.1
.~.~ For railway track

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

501  DF  GAUGE {61}
523  DF  .~ With conveying wheel support {1}
523.1.~.~ For railway track {1}
523.2  DF  .~.~.~> With recording means

DEFINITION

Classification: 33/523.1

For railway track:

(under subclass 523) Subject matter wherein the contact member contacts rails for aligning or checking purpose.

SEE OR SEARCH THIS CLASS, SUBCLASS:

651.1, for a track gauge of general use.