一种确定薄煤层半煤岩巷道断面尺寸的方法

Release time:2020-10-30 Hits:

Disigner of the Invention:张永平,tuhongsheng,张君正,王志强,李杰,赵伟,陈大广,伏映鹏,沙旋,孙松

Type of Patent:国际

State of Patent:专利授权

Application Number:201620597218.4

Number of Inventors:11

Service Invention or Not:no

Application Date:2016-06-16

Authorization Date:2017-02-15

First Author:Yuan Yong