急倾斜煤层工作面两巷超前支护液压支架侧护装置

Release time:2020-10-30 Hits:

Disigner of the Invention:Yuan Yong,张艳伟,白庆升,冯宇峰

Type of Patent:国际

State of Patent:专利授权

Application Number:201320014493.5

Number of Inventors:5

Service Invention or Not:no

Application Date:2013-01-11

Authorization Date:2013-07-17

First Author:屠洪盛