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The ornamental design for a sharpener, as shown and as described.
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FIG. 1 is a perspective view of a sharpener showing my design.
FIG. 2 is a front view thereof.
FIG. 3 is a rear view thereof.
FIG. 4 is a left side view thereof.
FIG. 5 is a right side view thereof.
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
| Patent | Priority | Assignee | Title |
| D731278, | Nov 16 2013 | Multi-functional sharpener for tools and blades | |
| D799930, | Apr 11 2016 | SMITH S CONSUMER PRODUCTS, INC | Hook and knife sharpener |
| ER8719, | |||
| ER9055, |
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