TREA

Yiwen Song

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  • Guangdong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric heater
    • Patent number D992100
    • Issue date Jul 11, 2023
    • Jingyu Pang
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Cooling fan
    • Patent number D979040
    • Issue date Feb 21, 2023
    • Weikang Yan
    • D23 - Environmental heating and cooling