Procédé d'extraction de charbon, notamment pour veines minces, et appareillage en permettant la mise en oeuvre,申请号FRD1049143-传众专利搜索

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发明名称	Procédé d'extraction de charbon, notamment pour veines minces, et appareillage en permettant la mise en oeuvre
摘要
申请公布号	FR1049143(A)	申请公布日期	1953.12.28
申请号	FRD1049143	申请日期	1952.01.15
申请人	HOUILLERES DU BASSIN DE LORRAINE	发明人	BIEAU JACQUES-MARIE-EDMOND
分类号	B65G19/28;E21F13/06	主分类号	B65G19/28
代理机构		代理人
主权项
地址

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