Perfectionnements aux machines d'abattage dans les mines,申请号FRD1108684-传众专利搜索

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发明名称	Perfectionnements aux machines d'abattage dans les mines
摘要
申请公布号	FR1108684(A)	申请公布日期	1956.01.16
申请号	FRD1108684	申请日期	1954.09.30
申请人	THE MINING ENGINEERING COMPANY LIMITED	发明人
分类号	E21C25/06	主分类号	E21C25/06
代理机构		代理人
主权项
地址

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