GA

Guanfeng An

Overall (2022): #443,537 of 548,613Top 85%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11346218 Guiding type miniature pipe-jacking construction method Jingda Ouyang, Haibin Yu, Rong Zhang, Tianjun Liu, Tan Wang +3 more 2022-05-31