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经营范围
发明名称
Cuvelage composite pour puits
摘要
申请公布号
FR1067376(A)
申请公布日期
1954.06.15
申请号
FRD1067376
申请日期
1952.12.02
申请人
C. DEILMANN BERGBAU G.M.B.H.
发明人
分类号
E21D5/11
主分类号
E21D5/11
代理机构
代理人
主权项
地址
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