RM

Ryoji Matsumaru

TC Tombow Pencil Co.: 1 patents #2 of 4Top 50%
📍 Kashiwa, JP: #12 of 53 inventorsTop 25%
Overall (1997): #181,605 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5679156 Character eraser case — 1997-10-21