,申请号NL19690005490-传众专利搜索

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发明名称
摘要
申请公布号	NL6905490(A)	申请公布日期	1969.11.03
申请号	NL19690005490	申请日期	1969.04.09
申请人		发明人
分类号	H04R11/08;H04R11/12;(IPC1-7):H04R11/12	主分类号	H04R11/08
代理机构		代理人
主权项
地址

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