Air filtration device

Details Air filtration device Air filtration device

2008-07-01

2008-07-01

Reid, Stella M. (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0572356

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

REFERENCES:
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patent: D359055 (1995-06-01), Drago et al.
patent: D394499 (1998-05-01), Bettag et al.
patent: D399938 (1998-10-01), Miller et al.
patent: D428644 (2000-07-01), De'Longhi
patent: D433346 (2000-11-01), Evans et al.
patent: D439320 (2001-03-01), Lee
patent: D445116 (2001-07-01), Evans et al.
patent: D462754 (2002-09-01), Briggs et al.
patent: D508735 (2005-08-01), Klein

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