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The ornamental design for a ski helmet, as shown and described.
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The broken lines in the drawings illustrate portions of the ski helmet which form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 15 2019 | CHEN, XUDONG | ZHUHAI STAR SPORTS EQUIPMENT CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 050924 | /0319 | |
| Oct 15 2019 | JIANG, WEIXING | ZHUHAI STAR SPORTS EQUIPMENT CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 050924 | /0319 | |
| Nov 04 2019 | Zhuhai Star Sports Equipment Co., Ltd. | (assignment on the face of the patent) | / |
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