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发明名称
Способ добычи полезных ископаемых
摘要
申请公布号
SU73319(A1)
申请公布日期
1948.11.30
申请号
SU19480375176
申请日期
1948.12.02
申请人
DEGTYAREV E.S.;LITVINENKO P.A.
发明人
DEGTYAREV E.S.;LITVINENKO P.A.
分类号
E21C41/18
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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