US PATENT SUBCLASS 166 / 54
.~ Float controlled valve

Current as of: June, 1999
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166 /   HD   WELLS

53  DF  AUTOMATIC {1}
54.~ Float controlled valve

DEFINITION

Classification: 166/54

(under subclass 53) Devices comprising valves controlled by a float responsive to the change in level or specific gravity of a fluid.

SEE OR SEARCH CLASS

137, Fluid Handling,

409+, for float controlled valves, per se.