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发明名称
BOUCLIER DE SOUTENEMENT POUR LE CREUSEMENT DE TUNNELS, GALERIES OU CAVITES ANALOGUES, AINSI QUE COUTEAU DE CREUSEMENT DESTINE A CE BOUCLIER
摘要
申请公布号
FR2334816(A1)
申请公布日期
1977.07.08
申请号
FR19760025699
申请日期
1976.08.25
申请人
EISENHUTTE WESTFALIA GEWERKSCHAF
发明人
分类号
E02D5/02;E21D9/06;E21D11/38;(IPC1-7):E21D9/06
主分类号
E02D5/02
代理机构
代理人
主权项
地址
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