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School Sign:第一单位

Disigner of the Invention:liuchun,满忠毅

Type of Patent:国内

State of Patent:专利授权

Application Number:6666522

Authorization number:6666522

Number of Inventors:3

Service Invention or Not:no

Application Date:2017-11-07

Authorization Date:2020-04-22

First Author:周福宝

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