WL

Wan-Chang Lin

Overall (All Time): #1,624,516 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6290366 Polygonal ratchet wrench with an illuminating device — 2001-09-18
5913596 Multifunctional screwdriver — 1999-06-22
5868251 Disk-shaped storage case for screwdriver tips — 1999-02-09