Electric fan

Details Electric fan Electric fan

1997-03-05

1998-02-24

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23381, 2304

Patent

active

D03913570

REFERENCES:
patent: 1464401 (1923-08-01), Bennett
patent: 2664242 (1953-12-01), Sebastian
patent: 3787142 (1974-01-01), Dupke
Diehl Fans Cat., p. 3, Fan A, bottom left side of page.
Industrial Equipment News, p. 59, Fan B, bottom right side of page, May 1962.

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