Title:
Heat pump
United States Patent 2503456
US Patent References:
Method of heating buildings
- - 1683434

/1875305.html
- - 1875305

Milk cooler
- - 2045491

Air conditioning system
- - 2071178

Air cooling device
- - 2109926


Inventors:
Smith, Marvin M.
Publication Date:
04/11/1950
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Assignee:
MUNCIE GEAR WORKS INC
Primary Class:
62/260
Other Classes:
62/324.300
International Classes:
F25B30/06; F25B30/00
US Patent References:
2167878Air conditioning system
2401890Heat pump