Language : English
周福宝

Patents

一种松软煤层瓦斯抽采用内支撑式护孔管及制备方法

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Affilication of Author(s):安全工程学院

Disigner of the Invention:刘春,liuyingke,王建龙,高峰

Type of Patent:国内

State of Patent:专利授权

Application Number:201410129441.1

Number of Inventors:5

Service Invention or Not:no

Application Date:2014-04-02

Authorization Date:2016-04-13

First Author:周福宝