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发明名称
摘要
申请公布号
JPS5222918(Y2)
申请公布日期
1977.05.25
申请号
JP19710060911U
申请日期
1971.07.13
申请人
发明人
分类号
H03F1/52;H03F1/00;H03F1/42;H04R3/00;(IPC1-7):H03F1/00
主分类号
H03F1/52
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