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发明名称
Perfectionnements au fonçage ou à l'arrachage des pieux, palplanches, tubages et analogues
摘要
申请公布号
FR1000115(A)
申请公布日期
1952.02.08
申请号
FRD1000115
申请日期
1949.11.04
申请人
发明人
DESVAUX JACQUES;BERTHET FRANCOIS
分类号
E02D11/00;E21B7/00
主分类号
E02D11/00
代理机构
代理人
主权项
地址
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