Separation of columbium and tantalum,申请号US19460649397-传众专利搜索

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发明名称	Separation of columbium and tantalum
摘要
申请公布号	US2481584(A)	申请公布日期	1949.09.13
申请号	US19460649397	申请日期	1946.02.21
申请人	UNION CARBIDE AND CARBON CORPORATION	发明人	FOWLER ROBERT M.
分类号	C22B34/24	主分类号	C22B34/24
代理机构		代理人
主权项
地址

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