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发明名称
Dispositif permettant de récupérer, à l'aide d'un câble tendu par un treuil, un ou plusieurs étançons métalliques de mines
摘要
申请公布号
FR998139(A)
申请公布日期
1952.01.15
申请号
FRD998139
申请日期
1949.10.24
申请人
HEINR. FU:RST SOHNE
发明人
分类号
E21D11/40;E21D15/60
主分类号
E21D11/40
代理机构
代理人
主权项
地址
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