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发明名称
LOCK OF INTERFRAME CONNECTIONS OF ARCH-SHAPED MINE ROOF SUPPORTS
摘要
申请公布号
SU972117(A1)
申请公布日期
1982.11.07
申请号
SU19813280342
申请日期
1981.04.22
申请人
PROIZV OB "VOROSHILOVOGRADUGOL"
发明人
ELISEEV EVGENIJ P,SU;GRIGOREV IVAN A,SU;KUZNETSOV VIL P,SU;FEDORENKO VIKTOR V,SU
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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