Yu Qing

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地层沉降变形协调的防治煤矿立井井筒变形破坏的系统

Release time:2020-10-30 Hits:

Disigner of the Invention:武若愚,堵紫薇,师永贞,高阳阳,李晓东,任家宁,闫世昌,尹可心
Type of Patent:国际
State of Patent:专利授权
Application Number:201621134216.8
Number of Inventors:9
Service Invention or Not:no
Application Date:2016-10-18
Authorization Date:2017-06-13
First Author:Yu Qing