CR

Chang Keun Ryu

📍 Gwangju, KR: #558 of 1,647 inventorsTop 35%
Overall (All Time): #2,245,977 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5865542 Guide sleeve for a length-adjustable column for chairs — 1999-02-02
5342012 Height adjusting mechanism for swivel chair — 1994-08-30