Process for making aluminum oxide,申请号US19480018342-传众专利搜索

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发明名称	Process for making aluminum oxide
摘要
申请公布号	US2643935(A)	申请公布日期	1953.06.30
申请号	US19480018342	申请日期	1948.04.01
申请人	PARKER HALVERSEN COMPANY	发明人	HALVERSEN ROY A.
分类号	C01F7/42	主分类号	C01F7/42
代理机构		代理人
主权项
地址

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