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Chang Tang — 2 Patents

Overall (All Time): #2,164,377 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6988511	Outlet valve structure for water dispenser	—	2006-01-24
6772807	Sealing structure of drinking water tank	—	2004-08-10