IB

Il Sung Bang

📍 Daega-myeon, KR: #296 of 592 inventorsTop 50%
Overall (All Time): #2,815,383 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10777095 Method to develop pronunciation and intonation proficiency of english and apparatus using the same 2020-09-15