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发明名称
摘要
申请公布号
JPS482903(U)
申请公布日期
1973.01.13
申请号
JP19710043097U
申请日期
1971.05.25
申请人
发明人
分类号
H04R5/033;H04R1/10;H04R5/04;(IPC1-7):H04R5/04
主分类号
H04R5/033
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