Electric fan

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment

Patent

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D23382

Patent

active

D03117723

REFERENCES:
patent: D70930 (1926-08-01), Xippas
patent: D218429 (1970-08-01), Yotsukura
patent: 2463337 (1949-03-01), Weber
patent: 3421428 (1969-01-01), Baumann et al.
patent: 4486144 (1984-12-01), Hung
Hardware Age, Mar. 1974, p. 26, Hitachi Fan (1), middle of page.
Diehl Fans Catalog, p. 4, Diehl Fan, Floor Model, right side of page, and p. 5, Floor Fans-2924, and 30 inch, left middle of page.

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