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发明名称
Procédé et dispositif d'ancrage applicable aux tiges de soutènement employées dans les mines, et pour tous autres scellements à sec
摘要
申请公布号
FR1369178(A)
申请公布日期
1964.08.07
申请号
FR19634208767
申请日期
1963.09.05
申请人
发明人
HEIREND EMILE
分类号
E21B17/042;E21D21/00;F16B13/00;F16B13/06;F16B13/13
主分类号
E21B17/042
代理机构
代理人
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