Patents Assigned to Yongkang Cool Sink Science and Technology Co, Ltd.
  • Magnetic block toy
    Patent number: D922495
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 15, 2021
    Assignee: Yongkang Cool Sink Science and Technology Co, Ltd.
    Inventor: Fada Lv
  • Magnetic block toy
    Patent number: D922501
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 15, 2021
    Assignee: Yongkang Cool Sink Science and Technology Co, Ltd.
    Inventor: Fada Lv