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Cho-Cheng Chiang

Overall (All Time): #2,248,704 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5896790 Adjustable wrench — 1999-04-27
5706710 Reversible/adjustable spanner — 1998-01-13

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