Procédé de préparation des bauxites ferrugineuses,申请号FRD50929-传众专利搜索

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发明名称	Procédé de préparation des bauxites ferrugineuses
摘要
申请公布号	FR50929(E)	申请公布日期	1941.05.10
申请号	FRD50929	申请日期	1939.07.24
申请人	ROHSTOFFHANDEL DER VEREINIGTEN STAHLWERKE G.M.B.H.	发明人	BETTENDORF CLEMENS
分类号	C01F7/38	主分类号	C01F7/38
代理机构		代理人
主权项
地址

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