CW

Chak Yuen Wong

📍 Sha Tin, CN: #76 of 303 inventorsTop 30%
Overall (2017): #457,800 of 506,227Top 95%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9772507 Spectacle frame with intertwining helix joints and nose pad structure to facilitate interchanging of lenses 2017-09-26