US PATENT SUBCLASS 119 / 79
.~.~.~ Oscillating valve

Current as of: June, 1999
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119 /   HD   ANIMAL HUSBANDRY

72  DF  WATERING OR LIQUID FEED DEVICE {3}
74  DF  .~ Fountains and troughs {4}
78  DF  .~.~ Float-controlled supply {2}
79.~.~.~ Oscillating valve

DEFINITION

Classification: 119/79

Fountains and troughs wherein a float-operated, hinged, flap, or oscillating valve controls the supply conduit.