CK

Chin-Sung Ko

📍 Changhua City, TW: #3 of 45 inventorsTop 7%
Overall (1997): #44,031 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5626160 Umbrella having means for opening and closing the same automatically — 1997-05-06
5615698 Umbrella folding and unfolding device — 1997-04-01