Patents Assigned to HANGZHOU YINGJIANG MACHINERY MANUFACTURING CO., LTD.
  • Hydraulic lifting jack
    Patent number: D828972
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 18, 2018
    Assignee: HANGZHOU YINGJIANG MACHINERY MANUFACTURING CO., LTD.
    Inventor: Shenghua Wu
  • Hydraulic lifting jack
    Patent number: D946232
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 15, 2022
    Assignee: HANGZHOU YINGJIANG MACHINERY MANUFACTURING CO., LTD.
    Inventors: Shenghua Wu, Zhengyang Liu
  • Hydraulic lifting jack
    Patent number: D946233
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 15, 2022
    Assignee: HANGZHOU YINGJIANG MACHINERY MANUFACTURING CO., LTD.
    Inventors: Xinqiang Zheng, Zhengyang Liu
  • Hydraulic lifting jack
    Patent number: D991616
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: July 4, 2023
    Assignee: HANGZHOU YINGJIANG MACHINERY MANUFACTURING CO., LTD.
    Inventors: Xinqiang Zheng, Zhengyang Liu