FY

Fu Yushan

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Bositenghu, CN: #24 of 78 inventorsTop 35%
Overall (All Time): #3,822,562 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5205664 Lead-auto-sharpened propelling pencil and the making process thereof Zhang Zheng Ru 1993-04-27