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发明名称
摘要
申请公布号
JPS57716(Y2)
申请公布日期
1982.01.07
申请号
JP19770167923U
申请日期
1977.12.13
申请人
发明人
分类号
H04R7/18;H04R1/22;H04R9/06;(IPC1-7):H04R7/18
主分类号
H04R7/18
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代理人
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