Dispositif facilitant la pose d'étais métalliques de mine,申请号FRD1088570-传众专利搜索

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发明名称	Dispositif facilitant la pose d'étais métalliques de mine
摘要
申请公布号	FR1088570(A)	申请公布日期	1955.03.08
申请号	FRD1088570	申请日期	1952.06.07
申请人		发明人	WARIAS OTTO
分类号	E21D15/51;E21D15/58	主分类号	E21D15/51
代理机构		代理人
主权项
地址

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