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经营范围
发明名称
METHOD FOR SUPPORTING MINE WORKING
摘要
申请公布号
RU1778311(C)
申请公布日期
1992.11.30
申请号
SU19904875546
申请日期
1990.10.22
申请人
MO GORNYJ INSTITUT
发明人
VOROBEV ANATOLIJ N,SU
分类号
E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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