HK

Hak-Young Keum

📍 Daedong-myeon, KR: #4 of 11 inventorsTop 40%
Overall (All Time): #3,871,120 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4996751 Automatic expanding and retracting device for belt buckle — 1991-03-05