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发明名称
摘要
申请公布号
JPS4724413(Y1)
申请公布日期
1972.08.02
申请号
JP19680039633U
申请日期
1968.05.15
申请人
发明人
分类号
(IPC1-7):H04R1/04
主分类号
(IPC1-7):H04R1/04
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代理人
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