HJ

Hong K. Joo

📍 Seodaemun-gu, KR: #156 of 340 inventorsTop 50%
Overall (All Time): #4,047,983 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4371278 Musical pen — 1983-02-01