HS

Hwa San Sim

📍 Singapore, SG: #6,661 of 13,971 inventorsTop 50%
Overall (All Time): #2,930,946 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9568434 Gemstone tester and a method of characterising a gemstone Joanne Yeo 2017-02-14