Dispositif pour obturer un passage tel que : galerie de mine, conduite forcée, égout et autres,申请号FR19630927446-传众专利搜索

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发明名称	Dispositif pour obturer un passage tel que : galerie de mine, conduite forcée, égout et autres
摘要
申请公布号	FR1359214(A)	申请公布日期	1964.04.24
申请号	FR19630927446	申请日期	1963.03.11
申请人	SEMA	发明人
分类号	E21F17/107	主分类号	E21F17/107
代理机构		代理人
主权项
地址

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