CK

Chung Nin Ko

HC Hong Kong Stationery Manufacturing Co.: 2 patents #1 of 1Top 100%
Overall (2003): #72,900 of 273,478Top 30%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6637968 Three-ring binder with actuating crank 2003-10-28
D479267 Ring binder 2003-09-02