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周福宝

Patents

一种松软煤层瓦斯抽采孔阶梯式护孔管的管身结构

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Affilication of Author(s):安全工程学院

Disigner of the Invention:高峰,刘春,王圣程,刘应科,肖翔

Type of Patent:国内

State of Patent:专利授权

Application Number:201210103061.1

Number of Inventors:6

Service Invention or Not:no

Application Date:2012-04-10

Authorization Date:2014-03-26

First Author:周福宝