Patents Assigned to ZHENGZHOU ZIEL NETWORK TECHONLOGY CO., LTD.
  • Hanger
    Patent number: D930371
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: September 14, 2021
    Assignee: ZHENGZHOU ZIEL NETWORK TECHONLOGY CO., LTD.
    Inventor: Chuan Song