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Yixue Xu
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Beijing, CN
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Patents Grants
last 30 patents
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Patent Grant
Delivery robot
Patent number
D1010701
Issue date
Jan 9, 2024
Ninebot (Beijing) Tech. Co. Ltd.
Zheng Jin
D15 - Machines not elsewhere specified
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Patent Grant
Delivery robot
Patent number
D978945
Issue date
Feb 21, 2023
Zheng Jin
015 - Brushing, scrubbing, and general cleaning