CH

Chu Hsing-San

📍 Changhua City, TW: #7 of 42 inventorsTop 20%
Overall (1994): #162,939 of 165,921Top 100%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

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