Title:
Convertible heating, cooling, and ventilating means
United States Patent 1938833

Inventors:
Irons Sr., John H.
Publication Date:
12/12/1933
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Assignee:
Irons Sr., John H.
Primary Class:
165/247
Other Classes:
261/DIG.034, 261/101, 138/DIG.004, 392/490, 392/398, 165/59, 392/488, 165/60, 392/358, 454/236
International Classes:
F24F3/044