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:

Affilication of Author(s):矿业工程学院

Disigner of the Invention:tushihao,王沉,冯星,魏坤

Type of Patent:国内

State of Patent:专利授权

Application Number:201610309648.6

Number of Inventors:5

Service Invention or Not:no

Application Date:2016-05-11

Authorization Date:2019-04-09

First Author:Yuan Yong