YH

Youichi Hamamoto

NL Nishihara Environmental Sanitation Research Corporation Limited: 1 patents #1 of 1Top 100%
Overall (1989): #41,293 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4818408 Intermittent aeration type biological treatment process and system therefor — 1989-04-04