Stock-watering fountains and troughs comprising a source of supply and a means for controlling the source of supply
adapted to be operated by the weight of the animal seeking water, generally applied by stepping upon a platform or treadle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51, and appropriate subclasses indented under subclass 51 for details.
SEE OR SEARCH CLASS
417, Pumps, appropriate subclasses for pumps details. Animal treadle operated pumps, not in combination with a receiving trough for the pumped fluid, are classified in Class 417.
