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Chia-Sung Chang

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Wang'an Town, TW: #135 of 480 inventorsTop 30%
Overall (All Time): #2,219,591 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6473931 Painting roller assembly 2002-11-05
6019234 Bracket for positioning books 2000-02-01