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发明名称
摘要
申请公布号
JPS537703(Y1)
申请公布日期
1978.02.27
申请号
JP19700093369U
申请日期
1970.09.18
申请人
发明人
分类号
H04R1/02;(IPC1-7):H04R1/02
主分类号
H04R1/02
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代理人
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