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发明名称
Dispositif d'enlèvement d'un étançon hydraulique de mine et étançon muni de ce dispositif
摘要
申请公布号
FR1181144(A)
申请公布日期
1959.06.11
申请号
FRD1181144
申请日期
1957.08.13
申请人
GUTEHOFFNUNGSHUETTE STERKRADE AKTIENGESELLSCHAFT
发明人
分类号
E21D15/55
主分类号
E21D15/55
代理机构
代理人
主权项
地址
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