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发明名称
摘要
申请公布号
JPS611985(U)
申请公布日期
1986.01.08
申请号
JP19840086423U
申请日期
1984.06.11
申请人
发明人
分类号
H04R1/00;A47B81/00;A47B81/06;E04B1/98;E04H1/12;(IPC1-7):H04R1/00
主分类号
H04R1/00
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代理人
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