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一种回采巷道垛式支架支护系统及方法
Release time:2023-09-01  Hits:

School Sign:第一单位
Disigner of the Invention:回新冬,郭浩天,马军强,朱柳,郑闯凯
Type of Patent:国内
State of Patent:专利授权
Application Number:201911199183.3
Service Invention or Not:no
Application Date:2019-11-29
Authorization Date:2020-12-04
First Author:yaoqiangling