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发明名称
Способ подземных рудных разработок
摘要
申请公布号
SU22651(A1)
申请公布日期
1931.09.30
申请号
SU19290054421
申请日期
1929.09.10
申请人
USTIMOVICH V.S.
发明人
USTIMOVICH V.S.
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主分类号
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