Air purification device

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment

Design Patent

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Details

CD23S355000

Design Patent

active

D0516689

CLAIM:
The ornamental design for an air purification device, as shown and described.

REFERENCES:
patent: D402746 (1998-12-01), Clark et al.
patent: D451182 (2001-11-01), Tsuji
patent: 6447586 (2002-09-01), Campbell
patent: D465567 (2002-11-01), Choi
patent: D488854 (2004-04-01), Stauffer

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