Patents Assigned to ZHENGZHOU SHANGHE ELECTRONIC TECHNOLOGY CO., LTD
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    Patent number: D909220
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 2, 2021
    Assignee: ZHENGZHOU SHANGHE ELECTRONIC TECHNOLOGY CO., LTD
    Inventors: Tiehan Hou, Qianqian Wang, Chao Qian