QT

Qianqian Tian

CC Crrc Qingdao Sifang Rolling Stock Research Institute Co.: 1 patents #9 of 45Top 20%
📍 Qingdao, CN: #112 of 400 inventorsTop 30%
Overall (2021): #297,476 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11014584 Coupler telescopic apparatus and coupler Guangchao WANG, Hui Liu 2021-05-25