YC

Yu-Tang Chen

Overall (2003): #34,913 of 273,478Top 15%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6655237 Ratchet wrench having cover positioning device 2003-12-02
6516690 Pawl shifting device for ratchet tools 2003-02-11