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School Sign:第一单位

Disigner of the Invention:周福宝,张亢,shibobo

Type of Patent:国内

State of Patent:专利授权

Application Number:201910146056.0

Number of Inventors:4

Service Invention or Not:no

Application Date:2019-02-27

Authorization Date:2023-08-01

First Author:xinhaihui

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