Electric fan

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

Patent

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D23382

Patent

active

D03074706

REFERENCES:
patent: D291352 (1987-08-01), Kouno et al.
patent: D294968 (1988-03-01), Shin-Chin
Industrial Equipment News, May 1962, p. 59, Hunter Air Spread Fan, Pedastal Model, middle right side of page.
Hardware Age, Mar. 1974, p. 26, Hitachi Fan 1, middle of page.
Winnower Fan Co., Advertisement, Cooling (except Ceiling Fans).

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