CY

Chi-Kuo Yang

Overall (1989): #29,945 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4858633 Stable telescopic centerpost of multiple-fold umbrella 1989-08-22
4815489 Umbrella ink means having resilient link for accelerating folding operation 1989-03-28