Air filter

Details Air filter Air filter

2000-02-14

2001-12-18

Lichtenstein, Lisa (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0452302

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

REFERENCES:
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patent: D. 402746 (1998-12-01), Clark et al.
patent: D. 420439 (2000-02-01), Ediger et al.

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