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Chung-Yhi Chang

Overall (All Time): #2,305,825 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D342107 Treadmill exerciser 1993-12-07
D300158 Pedal exerciser 1989-03-07