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Ching-Wen Chien

📍 Zhubei City, TW: #917 of 1,506 inventorsTop 65%
Overall (All Time): #3,713,384 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5618039 Batting exercising device for baseball Peter Tsai 1997-04-08