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发明名称
摘要
申请公布号
JPS6425285(U)
申请公布日期
1989.02.13
申请号
JP19870119403U
申请日期
1987.08.04
申请人
发明人
分类号
H04R1/00;(IPC1-7):H04R1/00
主分类号
H04R1/00
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