Double-sided fan

Details Double-sided fan Double-sided fan

1997-07-18

1999-04-27

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D23380, D23382, 2304

Patent

active

D04089057

REFERENCES:
patent: D352105 (1994-11-01), Chen
patent: 1084540 (1914-01-01), Dayiantis

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