US PATENT SUBCLASS 73 / 451
.~ Float operated indicator

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

32 R  DF  SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID {7}
451.~ Float operated indicator {3}
452  DF  .~.~> Continuous test fluid supply
453  DF  .~.~> Electrical indication
454  DF  .~.~> Pivoted float

DEFINITION

Classification: 73/451

(under subclass 32) Devices wherein a float operates or controls an indicator apart from the float itself.

SEE OR SEARCH THIS CLASS, SUBCLASS:

305+, for a float responsive to liquid level operating a separate indicator.