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发明名称
EXPANSION ROOF BOLT
摘要
申请公布号
SU1361341(A1)
申请公布日期
1987.12.23
申请号
SU19864001626
申请日期
1986.01.02
申请人
VNI PK UGOLNYJ I "KNIUI"
发明人
DIK YAKOV G,SU;LIGAJ GENNADIJ A,SU;KIM SERGEJ E,SU
分类号
E21D21/00;(IPC1-7):E21D21/00
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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