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发明名称
摘要
申请公布号
JPS5610068(Y2)
申请公布日期
1981.03.05
申请号
JP19730090875U
申请日期
1973.07.31
申请人
发明人
分类号
H04R1/28;H04R1/22;(IPC1-7):H04R1/28
主分类号
H04R1/28
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代理人
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