KW

Kanji Watanabe

SE Sumitomo Electric: 1 patents #1 of 2Top 50%
Overall (1989): #89,427 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4849282 Prestressing steel material Mikio Mizoe 1989-07-18