JH

Jianjun Han

JM Joy Global Underground Mining: 1 patents #11 of 51Top 25%
Overall (2020): #421,265 of 565,922Top 75%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10668901 Service jack system Francois Nortje 2020-06-02