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The ornamental design for an air purifier, as shown and described. |
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FIG. 1 is a top and front perspective view of a air purifier, showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is rear elevation view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof, the left side being a mirror image of the right side shown in FIG. 4;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 22 1998 | GUDEFIN, JACQUES | CALOR S A | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009582 | /0472 | |
| Nov 10 1998 | Calor S.A. | (assignment on the face of the patent) | / |
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