YY

Yu-Sung Yang

📍 Keelung, TW: #359 of 650 inventorsTop 60%
Overall (All Time): #3,945,933 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4722115 Multi-ring type leg-wheel — 1988-02-02