équipement pour l'abattage du charbon, utilisable au fond dans les mines,申请号FR19660054255-传众专利搜索

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发明名称	équipement pour l'abattage du charbon, utilisable au fond dans les mines
摘要
申请公布号	FR1476909(A)	申请公布日期	1967.04.14
申请号	FR19660054255	申请日期	1966.03.21
申请人	FIRMA GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人
分类号	E21C35/12;E21F13/06	主分类号	E21C35/12
代理机构		代理人
主权项
地址

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