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The ornamental design for a chalk holder, as shown and described.
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The broken lines in the drawings are included for the purpose of showing articles in the environment that form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 15 2016 | Wing Hing Manufacturing Co. Ltd. | (assignment on the face of the patent) | / | |||
May 06 2016 | LO, WAI | WING HING MANUFACTURING CO LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 038487 | /0917 | |
May 06 2016 | LO, LAP | WING HING MANUFACTURING CO LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 038487 | /0917 |
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