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The ornamental design for a air cleaner, as shown and described.
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FIG. 1 is a perspective view of an air cleaning device, showing our new design;
FIG. 2 is a right view of FIG. 1;
FIG. 3 is a left view of FIG. 1;
FIG. 4 is a top view of FIG. 1; and,
FIG. 5 is front view of FIG. 1.
The phantom line shown in the drawings forms no part of the claimed design(s).
Swinehart, Robert M., Zhang, Zhiqun
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 05 2003 | 3M Innovative Properties Company | (assignment on the face of the patent) | / |
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