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发明名称
SELF-ADVANCING DRIFT SUPPORT
摘要
申请公布号
RU2012816(C1)
申请公布日期
1994.05.15
申请号
SU19914948353
申请日期
1991.06.24
申请人
VSESOYUZNYJ NAUCHNO-ISSLEDOVATELSKIJ I PROEKTNO-KONSTRUKTORSKIJ UGOLNYJ INSTITUT "KUZNIUI"
发明人
GORODILOV NIKOLAJ N;BOBROV GENNADIJ N
分类号
E21D19/04;E21D11/36;(IPC1-7):E21D19/04
主分类号
E21D19/04
代理机构
代理人
主权项
地址
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