Mechanically-driven fan
United States Patent 1435477

Inventors:
Karle, John D.
Publication Date:
11/14/1922
View Patent Images:
Download PDF 1435477 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
SINGER MFG CO
Primary Class:
474/122
Other Classes:
474/171, 474/146
International Classes:
F04D25/08; F04D25/02