Engine cooling system
United States Patent 2147699

Inventors:
Hardiman, Frank M.
Publication Date:
02/21/1939
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Assignee:
GEN MOTORS CORP
Primary Class:
165/278
Other Classes:
165/46, 123/41.160, 165/73, 165/134.100, 165/81, 165/110
International Classes:
F01P3/22; F01P11/02; F16L55/052; F01P11/00; F16L55/04