Patents Assigned to HONGKONG YIJING INTERNATIONAL TECHNOLOGY CO., LIMITED
  • Chargeable pump with digital display
    Patent number: D873861
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: January 28, 2020
    Assignee: HONGKONG YIJING INTERNATIONAL TECHNOLOGY CO., LIMITED
    Inventor: Zhaoyun Mao
  • Chargeable pump
    Patent number: D873862
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: January 28, 2020
    Assignee: HONGKONG YIJING INTERNATIONAL TECHNOLOGY CO., LIMITED
    Inventor: Zhaoyun Mao