Perfectionnements apportés à la fusion des minerais,申请号FRD672901-传众专利搜索

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发明名称	Perfectionnements apportés à la fusion des minerais
摘要
申请公布号	FR672901(A)	申请公布日期	1930.01.08
申请号	FRD672901	申请日期	1929.04.10
申请人	ELECTRO METALLURGICAL COMPANY	发明人
分类号	C22B5/04;C22B5/06	主分类号	C22B5/04
代理机构		代理人
主权项
地址

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