DR

Duck Hee Ryu

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Goyang-si, KR: #673 of 1,118 inventorsTop 65%
Overall (All Time): #3,330,071 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7559251 Apparatus for forming thermal fatigue cracks Bo-Young Lee, Jae Seong Kim, Yong-Geol Kim, Dae Hwan An 2009-07-14