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Home › Inventors › Chunwen Han
CH

Chunwen Han

Overall (All Time): #2,101,771 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D631562 Ladder hinge — 2011-01-25
D620132 Ladder — 2010-07-20

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