US PATENT SUBCLASS 33 / 523.2
.~.~.~ With recording means
Current as of:
June, 1999
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GEOMETRICAL INSTRUMENTS
501
DF
GAUGE
{61}
523
DF
.~ With conveying wheel support {1}
523.1
DF
.~.~ For railway track {1}
523.2
.~.~.~ With recording means
DEFINITION
Classification: 33/523.2
With recording means:
(under subclass 523.1) Subject matter including means to make a record of track condition.
