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发明名称
摘要
申请公布号
JPS577099(U)
申请公布日期
1982.01.14
申请号
JP19800025287U
申请日期
1980.02.28
申请人
发明人
分类号
H04R17/10;F16B21/06;G10K9/122;G10K9/22;(IPC1-7):G10K9/22
主分类号
H04R17/10
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