Box fan

Details Box fan Box fan

1998-08-31

1999-11-23

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23381, D23412, 2304

Patent

active

D04169964

REFERENCES:
patent: D369403 (1996-04-01), Reveal et al.
patent: 5110263 (1992-05-01), Chiu

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