Outillage et méthodes pour l'exécution de tracages activés et pour l'abatage en veines pentées à plus de 45 deg.,申请号FRD1074509-传众专利搜索

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发明名称	Outillage et méthodes pour l'exécution de tracages activés et pour l'abatage en veines pentées à plus de 45 deg.
摘要
申请公布号	FR1074509(A)	申请公布日期	1954.10.06
申请号	FRD1074509	申请日期	1950.06.05
申请人		发明人	BINAUT JEAN
分类号	E21C27/35	主分类号	E21C27/35
代理机构		代理人
主权项
地址

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