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The ornamental design for a prefill valve, as shown and described.
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The broken lines shown in the figures are included for the purpose of illustrating portions of the prefill valve and form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Oct 10 2016 | ZHU, LIAN | ICOOL NINGBO CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 040445 | /0142 | |
Oct 20 2016 | Icool Ningbo Co., Ltd. | (assignment on the face of the patent) | / |
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