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发明名称
摘要
申请公布号
JPS52148901(U)
申请公布日期
1977.11.11
申请号
JP19760056659U
申请日期
1976.05.07
申请人
发明人
分类号
H04R5/02;H04R1/02;H04R1/26;H04R5/00;(IPC1-7):H04R5/00
主分类号
H04R5/02
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