TREA

Ziwei Chen

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  • Beijing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Child seat
    • Patent number D1010327
    • Issue date Jan 9, 2024
    • Ninebot (Beijing) Tech. Co., Ltd.
    • Jun Tang
    • D06 - Furnishings
  • Information Patent Grant

    Child seat
    • Patent number D984154
    • Issue date Apr 25, 2023
    • Jun Tang
    • D06 - Furnishings