SD

Sheng-Tong Day

Overall (All Time): #1,654,643 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5318067 Simplified fully automatic umbrella 1994-06-07
D342595 Adjustable strap 1993-12-28
5261124 Eye shield assembly for cap visor 1993-11-16