Combined automatic gas and oil burner
United States Patent 1840744

Inventors:
Scott, Lewis L.
Publication Date:
01/12/1932
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Assignee:
Scott, Lewis L.
Primary Class:
431/69
Other Classes:
431/265, 236/91B, 431/90, 431/284, 431/18, 261/29, 236/91R
International Classes:
F23D17/00