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The ornamental design for an air filter, substantially as shown and described. |
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FIG. 1 is a perspective view of the air filter showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right side view thereof, the left side being a mirror image of the right side shown;
FIG. 5 is a rear view thereof;
FIG. 6 is a bottom view thereof. _
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| D291351, | Oct 24 1984 | Biocomfort Produkte zur Gesundheitpflege GmbH | Air cleaner |
| D623282, | May 21 2009 | Hakko Corporation | Smoke absorber |
| D638923, | May 27 2010 | WOONGJIN COWAY CO., LTD. | Air sterilizer |
| D969288, | Jan 25 2021 | Air purifier | |
| D982147, | Apr 20 2022 | Air purifier | |
| ER2117, | |||
| ER6220, |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 28 1983 | Conair Corporation | (assignment on the face of the patent) | / | |||
| Jun 20 1983 | DOYLE, EDWARD J | CONAIR CORPORATION A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004146 | /0567 |
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