Heater fan

Details Heater fan Heater fan

1994-01-28

1994-12-20

Lichtenstein, Lisa P.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Portable

D23332

Patent

active

D03536629

REFERENCES:
patent: D119197 (1940-02-01), MacFadden et al.
patent: D173550 (1954-11-01), Wrablica, Jr.
patent: D291350 (1987-08-01), Sherman et al.
patent: D294633 (1988-03-01), McBratney
patent: D300847 (1989-04-01), Lin
patent: D305260 (1989-12-01), Mito
patent: D309182 (1990-07-01), Hsu
patent: D312124 (1990-11-01), Coup et al.
patent: D318526 (1991-07-01), Chaney
patent: D323708 (1992-02-01), Wang
patent: D324907 (1992-03-01), Cook
patent: 2100439 (1937-11-01), Friedman
patent: 3725640 (1973-04-01), Kunz
Bell & Company catalog, 1960, p. 247, Heater A, middle right side of page.
Sun Radio Co., Advetisement brochure, inside page, Thermo-Cool Unit A, top left side of page.
Tatung Co. of America, Inc. Cat., p. 5, Fan Heater-1503, left middle side of page.

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