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发明名称
Joint de piston pour étai de mine hydraulique
摘要
申请公布号
FR1297515(A)
申请公布日期
1962.06.29
申请号
FR19610870712
申请日期
1961.08.11
申请人
RHEINSTAHL WANHEIM G.M.B.H.
发明人
分类号
E21D15/44;F16J15/16
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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