Heating unit
United States Patent 2469963
US Patent References:
Heating and cooling of buildings
- - 1800150


Inventors:
Grosjean, Harry W.
Sizer, Elmer M. A.
Publication Date:
05/10/1949
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Assignee:
Grosjean, Harry W.
Sizer, Elmer M. A.
Primary Class:
165/56
Other Classes:
165/70, 52/220.100, 165/134.100, 392/370, 52/404.100, 43/124, 165/136, 165/171
International Classes:
F24D3/14; F24D3/12
Foreign References:
GB315067A
GB540678A
AU769032A