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发明名称
Обделка гидротехнических туннелей
摘要
申请公布号
SU76959(A1)
申请公布日期
1948.11.30
申请号
SU19470351488
申请日期
1947.01.24
申请人
ZAVRIEV G.P.
发明人
ZAVRIEV G.P.
分类号
E21D11/10
主分类号
E21D11/10
代理机构
代理人
主权项
地址
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