CF

Changshun Fang

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Dongguan, CN: #1,268 of 2,387 inventorsTop 55%
Overall (All Time): #2,914,737 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10109437 Key sound generation device for silicone keyboard Rongshu Li 2018-10-23