HY

Huo-Huang Yen

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,564,424 of 4,157,543Top 90%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6484452 Self-opening/closing umbrella — 2002-11-26