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发明名称
摘要
申请公布号
JPH04639(Y2)
申请公布日期
1992.01.09
申请号
JP19850088663U
申请日期
1985.06.12
申请人
发明人
分类号
H04R9/02;H04R7/12;H04R7/18;(IPC1-7):H04R7/12
主分类号
H04R9/02
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代理人
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