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发明名称
étançons à vis
摘要
申请公布号
FR995746(A)
申请公布日期
1951.12.06
申请号
FRD995746
申请日期
1949.08.03
申请人
SOCIETE D'EQUIPEMENT INDUSTRIEL ET MINIER
发明人
分类号
E21D15/24
主分类号
E21D15/24
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代理人
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