(under the class definition) Subject matter comprising means to ventilate a space used for the safekeeping of a good subject to decay or spoilage.
(1) Note. Perishables include grain, hay, ears of corn, seeds, fruit, vegetables, etc.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
201+, for drying houses, kilns, or containers, particularly subclasses 232+ for plural gas or vapor inlets and/or outlets.
62, Refrigeration, appropriate subclasses for ventilated rooms or chambers in combination with cooling or refrigeration means specialized to refrigeration.