CC

Cheng Chia Chen

Overall (All Time): #1,634,402 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5971560 Light device for a tool — 1999-10-26
D415004 Screw driver — 1999-10-12
D411945 Wrench — 1999-07-13