HT

Hong Tan

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,173,489 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8522805 Structure of self-opening/closing umbrella — 2013-09-03