Alumine résistant à l'attrition,申请号FRD1139766-传众专利搜索

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发明名称	Alumine résistant à l'attrition
摘要
申请公布号	FR1139766(A)	申请公布日期	1957.07.04
申请号	FRD1139766	申请日期	1955.11.25
申请人	ESSO RESEARCH AND ENGINEERING COMPANY	发明人
分类号	B01J21/04;C01F7/36	主分类号	B01J21/04
代理机构		代理人
主权项
地址

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