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Yoon Yeol Yoon

Overall (2011): #121,020 of 364,097Top 35%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8070944 Groundwater radon reduction apparatus Kil Yong Lee, Kyung Seok Ko 2011-12-06