YL

Yafei Liu

BT Beijing University Of Technology: 1 patents #3 of 71Top 5%
Overall (2017): #191,882 of 506,227Top 40%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9689121 Piston-type variable speed control device Jianjun SHI, Jizhen Guan 2017-06-27