US PATENT SUBCLASS 73 / 312
.~.~ Recording

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

290 R  DF  LIQUID LEVEL OR DEPTH GAUGE {13}
305  DF  .~ Float {12}
312.~.~ Recording

DEFINITION

Classification: 73/312

(under subclass 305) Gauges having means for making a permanent record of the float movements.

SEE OR SEARCH CLASS

346, Recorders.