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发明名称
摘要
申请公布号
JPS6445233(U)
申请公布日期
1989.03.17
申请号
JP19870137608U
申请日期
1987.09.10
申请人
发明人
分类号
F24F13/062;F24F13/068;H04R1/02;(IPC1-7):F24F13/062
主分类号
F24F13/062
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代理人
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