Title:
Wheels for centrifugal fans of the forward curved multiblade type
United States Patent 3140042


Inventors:
Noriyoshi, Fujii
Application Number:
US13160061A
Publication Date:
07/07/1964
Filing Date:
08/15/1961
Assignee:
Noriyoshi, Fujii
Primary Class:
Other Classes:
416/186R
International Classes:
F04D29/28; F04D29/30
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US Patent References:
Foreign References:
AT153419B1938-05-25
GB187803253A
GB710391A1954-06-09
IT495846B