JC

Joseph Sylvester Chang

📍 Singapore, TX: #2 of 3 inventorsTop 70%
Overall (1997): #130,168 of 185,788Top 75%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5631965 Hearing protector Yit C. Tong 1997-05-20