HL

Hangyuan Lv

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,809,526 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10746020 Vertical lifting type drum coal-mining machine without rocker arm Yimin Zhang, Wenjia Lu, Yanhui Zhao, Jinrui Zhang, Lisha Zhu +3 more 2020-08-18