RK

Ritsuo Koga

PR Prevent-Plus: 1 patents #1 of 6Top 20%
Overall (1989): #65,760 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4802014 Portable transfer apparatus — 1989-01-31