CQ

Changguang Qi

Overall (2022): #495,451 of 548,613Top 95%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11230817 Rainfall induction type two-component high-polymer grouting device and manufacturing method thereof Zhichao Zhang, Jinjing Pan, Kan Liu, Longzhen Ye, You Gao 2022-01-25