ET

Eiji Tsuru

NS Nippon Steel: 1 patents #57 of 282Top 25%
Overall (1989): #117,321 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4830411 Threaded joint for oil-well pipe Shunji Nishi, Masao Ogasawara 1989-05-16