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发明名称
摘要
申请公布号	NL6706984(A)	申请公布日期	1968.11.20
申请号	NL19670006984	申请日期	1967.05.19
申请人		发明人
分类号	C22C19/00;H01F1/04	主分类号	C22C19/00
代理机构		代理人
主权项
地址

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