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发明名称
摘要
申请公布号
JPH0356288(U)
申请公布日期
1991.05.30
申请号
JP19890117437U
申请日期
1989.10.04
申请人
发明人
分类号
H04R1/02;G10K11/02;H04N5/64;(IPC1-7):H04R1/02
主分类号
H04R1/02
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