CH

Chi Ching Hai

📍 Sha Tin, CN: #748 of 2,424 inventorsTop 35%
Overall (All Time): #2,208,105 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6651811 Anti-pilferage device for optical disc holder — 2003-11-25
6415918 Optical disc holder Chi Man Wong, Tat Mo Lee 2002-07-09