姚强岭

Click:

The Last Update Time:..

Current position: Home > Scientific Research > Patents

Patents

一种小断面回采巷道混合式超前支护方法
Release time:2023-09-01  Hits:

School Sign:第一单位
Disigner of the Invention:回新冬,于元林,朱柳,申乾
Type of Patent:国内
State of Patent:专利授权
Application Number:201910917514.6
Service Invention or Not:no
Application Date:2019-09-26
Authorization Date:2020-08-28
First Author:yaoqiangling