Patents Assigned to QINGDAO TAIFA GROUP CO., LTD.
  • Nesting go cart
    Patent number: D940987
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: January 11, 2022
    Assignee: QINGDAO TAIFA GROUP CO., LTD.
    Inventors: Wenwei Xue, Hanzhu Sheng