Language : English
周福宝

Patents

一种基于减阻工作液的全封闭瓦斯抽采泵节能系统

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Disigner of the Invention:Zhang Yifan,liuchun,李金石,潘卓

Type of Patent:国内

State of Patent:专利授权

Application Number:201810455901.8

Number of Inventors:5

Service Invention or Not:no

Application Date:2018-05-14

Authorization Date:2019-07-02

First Author:周福宝