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YC

Yong-Hong Chang

Overall (All Time): #2,316,934 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5020799 Folding billiard table — 1991-06-04
4762321 Foldaway table tennis support structure — 1988-08-09

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