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Type of Patent:Invent
State of Patent:Authorized patents
Application Number:CN202110098762.X
Authorization number:CN112727543B
Service Invention or Not:no
Application Date:2021-01-25
Authorization Date:2022-05-10
Application Date:2021-01-25
Authorization Date:2022-05-10
Attachments:
F202101063-一种隧道智能化多级降压排水系统及使用方法-发明专利证书(签章).pdf Download[]Times