KC

Kung-Hua CHENG

WC World Wide Stationery Mfg. Co.: 1 patents #17 of 21Top 85%
Overall (All Time): #3,654,294 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5924811 Assembling and disassembling device for ring binders Chun Yuen To, Chun On To, Weng Io Ng, Wen Xu 1999-07-20