YY

Yung Tay Yu

CC Chaw Khong Technology Co.: 1 patents #1 of 3Top 35%
📍 Dahe, CN: #1 of 12 inventorsTop 9%
Overall (2003): #83,147 of 273,478Top 35%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6634452 Electric scooter power switching device Tung-Chao Cheng 2003-10-21