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发明名称
摘要
申请公布号	NL289501(A)	申请公布日期	1965.03.25
申请号	NLD289501	申请日期	1963.02.27
申请人		发明人
分类号	C04B35/26;H01F1/34	主分类号	C04B35/26
代理机构		代理人
主权项
地址

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