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Chi-Chin Yu

Overall (All Time): #2,255,324 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5993520	Electronic dust collecting type air purifier	—	1999-11-30
5759239	Air purifier	—	1998-06-02