Ma Dedong

博士

Postgraduate (Doctoral)

山东大学

Personal Information:

Gender:Male
Date of Employment:2009-07-31

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Home > Scientific Research > Patents

一种多功能呼气正压鼻面罩

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Type of Patent:Invent
Application Number:CN201711013027.4
Number of Inventors:7
Service Invention or Not:no
Application Date:2017-10-26

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