Cooling, heating, ventilating, and humidifying system
United States Patent 1821297

Inventors:
Arthur, Driscoll
Publication Date:
09/01/1931
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Assignee:
Arthur, Driscoll
Primary Class:
165/60
Other Classes:
261/DIG.034, 261/115, 165/64, 392/360, 261/30, 392/349, 126/113, 261/142
International Classes:
F24F6/12