Boiler and water heater system
United States Patent 1988263

Inventors:
Casserly, Thomas D.
Publication Date:
01/15/1935
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Assignee:
WEIL MCLAIN CO INC
Primary Class:
122/32
Other Classes:
237/8R, 236/93R, 237/19
International Classes:
F24D3/08; F24D3/00