(under the class definition) Subject matter specifically designed to hatch fowls from eggs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302+, for housing structure not specifically designed to hatch fowls from eggs and having a hover, hover chamber, or canopy structure.
437+, for housing structure not specially designed to hatch fowls from eggs and lacking a hover, hover chamber, or canopy structure.
SEE OR SEARCH CLASS
126, Stoves and Furnaces,
113, and 508 for combined heaters and air moisteners, subclass 293 for manually operated combined dampers and ventilators. 236, Automatic Temperature and Humidity Regulation, for ventilation of heaters of general application, and for ventilators indivisibly related to temperature regulation and which are employed to perform the double function of regulating the temperature of the egg chamber and the amount of fresh air admitted thereto, and for thermostatic devices for regulating temperature.
261, Gas and Liquid Contact Apparatus, for the general art of air moistening.
454, Ventilation, for the generic art of ventilation.