Perfectionnements apportés aux procédés de fabrication de noir de fer,申请号FRD1205387-传众专利搜索

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发明名称	Perfectionnements apportés aux procédés de fabrication de noir de fer
摘要
申请公布号	FR1205387(A)	申请公布日期	1960.02.02
申请号	FRD1205387	申请日期	1958.04.09
申请人		发明人	FREY FRIEDRICH
分类号	C01G49/08	主分类号	C01G49/08
代理机构		代理人
主权项
地址

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