Apparatus for heat transfer by circulating water
United States Patent 2240731

Inventors:
Vulpen, John Van
Publication Date:
05/06/1941
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Assignee:
VAPOR CAR HEATING CO INC
Primary Class:
237/5
Other Classes:
237/63, 62/185, 165/265, 237/39, 126/392.100, 237/19, 165/219, 236/1C
International Classes:
F24D19/10; F24D19/00