YC

Ying Kit Chan

ST Scientific Toys: 3 patents #1 of 1Top 100%
Overall (1997): #9,469 of 185,788Top 6%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D387383 Toy teaching device 1997-12-09
D384698 Toy teaching device 1997-10-07
5651681 Toy electronic information storage media and playback system 1997-07-29