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发明名称
Dispositif de pose d'étançons de mine en deux parties
摘要
申请公布号
FR984819(A)
申请公布日期
1951.07.11
申请号
FRD984819
申请日期
1949.04.19
申请人
发明人
BRAND JOSEF
分类号
E21D15/58;E21D15/582
主分类号
E21D15/58
代理机构
代理人
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