Preparation of catalysts,申请号US19390298613-传众专利搜索

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发明名称	Preparation of catalysts
摘要
申请公布号	US2258111(A)	申请公布日期	1941.10.07
申请号	US19390298613	申请日期	1939.10.09
申请人	SHELL DEVELOPMENT COMPANY	发明人	ENGEL WILLEM FREDERIK
分类号	B01J21/00;B01J23/26	主分类号	B01J21/00
代理机构		代理人
主权项
地址

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