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The ornamental design for an air purifier, as shown and described.
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The broken lines shown in the drawings are included for the purpose of illustrating portions of the air purifier that form no part of the claimed design.
Chang, Hong, Li, Xiangwu, Jia, Yuewen, Jia, Guangmin
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May 31 2021 | LI, XIANGWU | SHENZHEN AIRTOK TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056402 | /0808 | |
May 31 2021 | CHANG, HONG | SHENZHEN AIRTOK TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056402 | /0808 | |
May 31 2021 | JIA, YUEWEN | SHENZHEN AIRTOK TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056402 | /0808 | |
May 31 2021 | JIA, GUANGMIN | SHENZHEN AIRTOK TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056402 | /0808 | |
Jun 01 2021 | Shenzhen Airtok Technology Co., Ltd. | (assignment on the face of the patent) | / |
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