BK

Bu Ja Kim

📍 Shihuang, CN: #2 of 4 inventorsTop 50%
Overall (All Time): #1,910,362 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10683850 Rotational force generating device using clock spring — 2020-06-16
6488122 Apparatus for generating rotative force using spring — 2002-12-03