YC

Yuan-Chan Chuang

📍 Douliu, TW: #145 of 282 inventorsTop 55%
Overall (All Time): #3,902,813 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4925329 Joint for foldable ladders — 1990-05-15