一种弱胶结未成砂岩隧道施工装置
Affilication of Author(s):西南交通大学
Type of Patent:Utility model patent
State of Patent:Have authorized
Application Number:202121860333.3
Authorization number:CN 215486021 U
Number of Inventors:3
Service Invention or Not:no
Application Date:2021-08-10
Authorization Date:2022-01-11
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