SY

Seikichi Yanagita

PK Pilot Man-Nen-Hitsu Kabushiki Kaisha: 1 patents #1 of 10Top 10%
Overall (1982): #31,608 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4347011 Fountain pen equipped with a resiliency adjustment device — 1982-08-31