HJ

Huichang Jin

Overall (2023): #419,743 of 537,848Top 80%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11708253 Heavy load elevator installation platform capable of stretching and retracting steplessly Yongsheng Fu, Huaiyin Qian, Leilei Zhao, Haoran Kuang 2023-07-25