Convection heating apparatus
United States Patent 3147368
US Patent References:
/0835570.html
- - 0835570

Unit heater and ventilator
- - 1823579

Unit heater and ventilator
- - 1950768

Apparatus for heating rooms
- - 2007102

Blower
- - 2268046


Inventors:
Walker, Henry E.
Publication Date:
09/01/1964
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Assignee:
Walker, Henry E.
Primary Class:
392/353
Other Classes:
415/177, 165/122, 415/203, 415/53.100, 392/363
International Classes:
F04D17/04; F24H3/04; F04D17/00
US Patent References:
2274469Room heater
2434847Air conditioning unit having a reversible fan wheel
2451926Electric air heater
2843718Air heater
Foreign References:
GB783574A