YT

Yu-Chi Tsai

Overall (2002): #33,521 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6481060 Multi-purpose cap clip 2002-11-19
6461212 Automatic start control and clutch of toy engine powered by high pressure gas 2002-10-08