Title:
Plastic ventilator fan
United States Patent 2441737
US Patent References:
Automobile fan device
- - 1467233

Ventilating apparatus
- - 1767988

Ventilating fan
- - 1930794

Electric fan
- - 1996195

Screw fan ventilator
- - 2048985


Inventors:
Weich, William W.
Publication Date:
05/18/1948
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Assignee:
Weich, William W.
Primary Class:
454/210
International Classes:
F04D29/52; F04D29/40
US Patent References:
2054526Darkroom ventilator
2294399Plastic fan stand
2310772Plastic fan stand