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发明名称
METHOD OF SAFEGUARDING PREPAROTARY WORKINGS
摘要
申请公布号
SU973856(A1)
申请公布日期
1982.11.15
申请号
SU19813293794
申请日期
1981.05.25
申请人
VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA
发明人
REVA VLADIMIR N,SU;BAZHIN NIKOLAJ P,SU;NEJMAN LEONID K,SU;MELNIKOV OLEG I,SU;RAJSKIJ VADIM V,SU
分类号
E21D11/08;(IPC1-7):E21D11/08
主分类号
E21D11/08
代理机构
代理人
主权项
地址
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