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The ornamental design for a hair rollers, as shown and described.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 13 2013 | Cheer Master Trading Ltd. | (assignment on the face of the patent) | / | |||
| Jun 13 2013 | Tristar Products, Inc. | (assignment on the face of the patent) | / | |||
| Jun 13 2013 | CALISTA TOOLS, LLC | (assignment on the face of the patent) | / | |||
| Nov 14 2013 | XU, LIANG | CHEER MASTER TRADING LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 031817 | /0825 | |
| Nov 14 2013 | XU, LIANG | TRISTAR PRODUCTS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 031817 | /0825 | |
| Nov 14 2013 | XU, LIANG | CALISTA TOOLS, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 031817 | /0825 |
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