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The ornamental design for a keyboard, as shown and described.
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The dot-dashed broken lines represent a boundary of the keyboard and form no part of the claimed design, all of the remaining broken lines represent environment only and form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 08 2016 | CHOU, YUN-JU | Acer Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 037539 | /0568 | |
| Jan 08 2016 | LIN, KER-WEI | Acer Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 037539 | /0568 | |
| Jan 14 2016 | Acer Incorporated | (assignment on the face of the patent) | / |
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