Werkwijze voor het bereiden van roetzwart.,申请号NL19520167870-传众专利搜索

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发明名称	Werkwijze voor het bereiden van roetzwart.
摘要
申请公布号	NL84781(C)	申请公布日期	1957.04.15
申请号	NL19520167870	申请日期	1952.03.04
申请人	SHELL REFINING & MARKETING CO LTD	发明人
分类号	C09C1/48;F28D13/00	主分类号	C09C1/48
代理机构		代理人
主权项
地址

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