Window fan

Details Window fan Window fan

1993-04-23

1997-12-23

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23333, D23351, 2304

Patent

active

D03881636

REFERENCES:
patent: D179726 (1957-02-01), Harpman
patent: D182025 (1958-02-01), Groleau
patent: D346208 (1994-04-01), Smith
patent: 547996 (1895-10-01), Iliowizi
patent: 957680 (1910-05-01), Johanns
patent: 1081195 (1913-12-01), Austin
patent: 1307449 (1919-06-01), Mayeda
patent: 2373497 (1945-04-01), Paiste, Jr.
patent: 3275224 (1966-09-01), Bush
patent: 3830147 (1974-08-01), Weber et al.
patent: 5190496 (1993-03-01), Shin-Chin

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