Anhydroussilica precipitate sio2,申请号EG19950000908-传众专利搜索

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发明名称	Anhydroussilica precipitate sio2
摘要
申请公布号	EG20666(A)	申请公布日期	1999.10.31
申请号	EG19950000908	申请日期	1995.11.01
申请人	HASSAN AHMED EL SAADANY	发明人
分类号	B01J13/00;C01B33/143;C01B33/193;(IPC1-7):C01B33/143	主分类号	B01J13/00
代理机构		代理人
主权项
地址

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