CH

Chu Hsing-San

📍 Changhua City, TW: #473 of 984 inventorsTop 50%
Overall (All Time): #3,795,342 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5304010 Toothbrush with automatic water supply 1994-04-19