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发明名称
METHOD OF SUPPORTING MINE ROOF AT LONGWALL JUNCTION
摘要
申请公布号
SU697729(A1)
申请公布日期
1979.11.15
申请号
SU19762407276
申请日期
1976.09.28
申请人
VNI PK UGOLNYJ INSTITUT
发明人
KALMYKOV VYACHESLAV F,SU;BOROVKOV YURIJ A,SU;POPP RENGOLD ,SU;SHOKHOR MAKSIM M,SU;NOVIKOV VLADIMIR YA,SU;VAREKHA ZHORZH P,SU;ILYASHENKO PETR L,SU
分类号
E21D11/36;E21D23/00;(IPC1-7):E21D11/36
主分类号
E21D11/36
代理机构
代理人
主权项
地址
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