YA

Yoichi Ando

ML Mitsubishi Pencil Company, Limited: 1 patents #1 of 1Top 100%
Overall (1982): #22,286 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4352580 Knock-out type mechanical pencil with retractable eraser — 1982-10-05