JM

Jijun Ma

📍 Tangshan City, CN: #1 of 5 inventorsTop 20%
Overall (2016): #355,301 of 481,213Top 75%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9409580 Obstacle removing and energy absorbing device and leading car of motor train unit Letian Fan, Guoping Zhang, Jiangong WANG, Quanmei Guan, Qinggang Zhang +1 more 2016-08-09