équipement pour l'abatage et l'évacuation du charbon, utilisable notamment dans les mines,申请号FR19620887504-传众专利搜索

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发明名称	équipement pour l'abatage et l'évacuation du charbon, utilisable notamment dans les mines
摘要
申请公布号	FR1346966(A)	申请公布日期	1963.12.27
申请号	FR19620887504	申请日期	1962.02.09
申请人	GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人
分类号	E21C35/12	主分类号	E21C35/12
代理机构		代理人
主权项
地址

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