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发明名称
摘要
申请公布号
JPS5218575(B2)
申请公布日期
1977.05.23
申请号
JP19730101850
申请日期
1973.09.10
申请人
发明人
分类号
H04R7/02;H04R19/00
主分类号
H04R7/02
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