CP

Ching W. Pun

📍 Sha Tin, CN: #1,175 of 2,424 inventorsTop 50%
Overall (All Time): #4,107,108 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4190702 Batteries Ching Ching Kelvin Poon 1980-02-26