Combined fan housing and hatch cover

Details Combined fan housing and hatch cover Combined fan housing and hatch cover

1994-10-19

1996-01-02

Lichtenstein, Lisa P.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Combined heating and cooling or with diverse element

D12317, D23370

Patent

active

D03658732

REFERENCES:
patent: 3440945 (1969-04-01), De Mura
patent: 3779149 (1973-12-01), Bernard, Jr.
patent: 4307655 (1981-12-01), Parks et al.
patent: 5339759 (1994-08-01), Peabody

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