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Chiafeng Chang

📍 Dayuan District, TW: #70 of 135 inventorsTop 55%
Overall (All Time): #3,518,461 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6598485 Method and device for evaluating quality of concrete structures Yiching Lin 2003-07-29