HC

Ho Ping Cheng

WC World Wide Stationery Mfg. Co.: 2 patents #2 of 9Top 25%
📍 Zhubei City, TW: #21 of 213 inventorsTop 10%
Overall (2011): #95,976 of 364,097Top 30%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8038361 Ready lock ring binder mechanism Hung Yu Cheng 2011-10-18
7891901 Ready lock ring binder mechanism Hung Yu Cheng 2011-02-22