Soot-removing system
United States Patent 1747435

Inventors:
Alexander, Girtanner
Mcnulta, Joseph J.
Publication Date:
02/18/1930
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Assignee:
GIRTANNER ENGINEERING CORP
Primary Class:
110/171
Other Classes:
122/379, 406/117
International Classes:
F23J3/02; F23J3/00