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We claim the ornamental design for an air purifier, as shown and described.
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FIG. 1 is a perspective view of an air purifier of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a right side view thereof, wherein the left side view is a mirror image of the right side view with respect to plane A that extends perpendicular to the page of FIG. 4;
FIG. 5 is a back view thereof; and,
FIG. 6 is a bottom view thereof.
Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 09 2004 | CHEN, XIAO FEI | SHANGHAI NEO TEC ELECTRON CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015791 | /0602 | |
Sep 14 2004 | Shanghai Neo Tec Electron Co., Ltd. | (assignment on the face of the patent) | / |
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