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Si-Nam Cho

EC Essen Tech Co.: 1 patents #10 of 11Top 95%
Overall (All Time): #3,328,351 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7549389 Ball valve apparatus having a moisture indicator Sang-Bong Lee 2009-06-23