Procédé et dispositif pour le percement de tunnels ou galeries dans les terrains instables,申请号FR19620902240-传众专利搜索

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发明名称	Procédé et dispositif pour le percement de tunnels ou galeries dans les terrains instables
摘要
申请公布号	FR1338375(A)	申请公布日期	1963.09.27
申请号	FR19620902240	申请日期	1962.06.28
申请人	HERSENT	发明人
分类号	E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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