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发明名称
Procédé de construction d'un passage sous voie et installation pour la mise en oeuvre de ce procédé
摘要
申请公布号
CH434335(A)
申请公布日期
1967.04.30
申请号
CH19660005080
申请日期
1966.04.06
申请人
REYMOND,FRITZ
发明人
REYMOND,FRITZ
分类号
E21D9/00;(IPC1-7):E01D7/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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