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    Home > Chemicals Industry > Chemical Technology > The fourth-generation refrigerant patent right was declared invalid

    The fourth-generation refrigerant patent right was declared invalid

    • Last Update: 2021-10-09
    • Source: Internet
    • Author: User
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    Sinochem News News on September 2, the State Intellectual Property Office Announced No.



    Through independent research and development, Zhejiang Huanxin Fluorine Materials Co.




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