ZL

Zhong Bin Liu

WC World Wide Stationery Mfg. Co.: 1 patents #17 of 21Top 85%
📍 Xidu, CN: #1 of 2 inventorsTop 50%
Overall (All Time): #3,337,665 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7600939 Ring binder mechanism with sliding hinge plate Hung Yu Cheng 2009-10-13