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一种适用于软岩地层的自钻式带止浆塞组合注浆锚杆

Release time:2023-09-01 Hits:

Affilication of Author(s):资源与地球科学学院
Scope of patent:国内
School Sign:第一单位
Disigner of the Invention:wangdangliang,张豆豆,侯庆学,杨道坤,翟果果
Type of Patent:国内
State of Patent:专利授权
Application Number:202110571346.7
Service Invention or Not:no
Application Date:2021-05-25
Publication Date:2021-07-13
Authorization Date:2022-02-28
First Author:刘杨