Procédé d'utilisation de résidus de goudron,申请号FRD1056612-传众专利搜索

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发明名称	Procédé d'utilisation de résidus de goudron
摘要
申请公布号	FR1056612(A)	申请公布日期	1954.03.01
申请号	FRD1056612	申请日期	1952.05.16
申请人	DEUTSCHE KOHLENBERGBAU-LEITUNG	发明人
分类号	C01G17/00	主分类号	C01G17/00
代理机构		代理人
主权项
地址

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