Search Results - "CHEN-LI CHANGHAO" :: K.UTB vyhledávací portál | TBU Library Retrieval Portal

Fastening device

Fastening device

by CHANGHAO,CHEN LI
Year of Publication 31.10.2007

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Patent

Fastening device

Fastening device

by CHANGHAO,CHEN LI
Year of Publication 19.04.2006

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Patent

Ticket real name authentication method and system based on three-dimensional code

Ticket real name authentication method and system based on three-dimensional code

by CHEN-LI CHANGHAO, SHI WENCHANG, QIN BO, WANG JIAWEI, CHEN PENG, WU XUFENG
Year of Publication 13.04.2016

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Patent