IM

Isamu Matsuzawa

📍 Chiyoda, JP: #899 of 1,712 inventorsTop 55%
Overall (All Time): #2,318,392 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5040392 Cylinder lock — 1991-08-20
4891477 Key switch — 1990-01-02