LH

Li HUANG

CC China Railway Tunnel Group Co.: 1 patents #1 of 26Top 4%
Overall (2022): #360,394 of 548,613Top 70%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11371348 Pipeline annular self-traveling guide apparatus and method Yanwei Zhang, Xinpeng Hu, Feng Li, Guohong Ren, Dabing Che +7 more 2022-06-28