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发明名称
étai hydraulique de mine
摘要
申请公布号
FR1390105(A)
申请公布日期
1965.02.19
申请号
FR19640972230
申请日期
1964.04.24
申请人
KLOCKNER-WERKE A. G.
发明人
分类号
E21D15/58
主分类号
E21D15/58
代理机构
代理人
主权项
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