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一种巷道迎头极限空顶距测量装置及方法
Release time:2020-10-30  Hits:

Affilication of Author(s):矿业工程学院
Scope of patent:国内
Disigner of the Invention:冉智,张农
Type of Patent:国内
State of Patent:专利授权
Application Number:201811564122.8
Number of Inventors:3
Service Invention or Not:no
Application Date:2018-12-20
Authorization Date:2020-01-10
First Author:hanchangliang