NC

Ngai H. Cheung

📍 Toronto, CA: #5,171 of 9,482 inventorsTop 55%
Overall (All Time): #3,972,032 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4656914 Stool and auxiliary pedal for a keyboard instrument Karl Weisser 1987-04-14