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发明名称
摘要
申请公布号
JPS56145189(U)
申请公布日期
1981.11.02
申请号
JP19800043701U
申请日期
1980.03.31
申请人
发明人
分类号
H04R3/02;(IPC1-7):H04R3/02
主分类号
H04R3/02
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代理人
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地址
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