QIAO Yuanyuan   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

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Language： 中文

Patents

发票类别识别方法、装置、电子设备及可读存储介质

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Affilication of Author(s):北京邮电大学

First Author:乔媛媛

Type of Patent:Invent

State of Patent:Authorized patents

Application Number:2019102904573

Authorization number:ZL201910290457.3

Service Invention or Not:no

Application Date:2019-04-17

Authorization Date:2020-12-04

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