SK

Shinsaku Koizumi

KS Kawai Gakki Seisakusho: 1 patents #3 of 6Top 50%
Overall (1989): #57,548 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4821618 Action-supporting arrangement in piano — 1989-04-18