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发明名称
摘要
申请公布号
JPS5286345(U)
申请公布日期
1977.06.28
申请号
JP19750174898U
申请日期
1975.12.23
申请人
发明人
分类号
H03F1/00;H04R3/00;H04R9/12;(IPC1-7):H03F1/00
主分类号
H03F1/00
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代理人
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