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发明名称
摘要
申请公布号
JPS5521402(B2)
申请公布日期
1980.06.10
申请号
JP19740143868
申请日期
1974.12.13
申请人
发明人
分类号
C04B35/46;C04B35/00;H01B3/12;H01B3/52;H01G4/12
主分类号
C04B35/46
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代理人
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Ear-cavity mouldings for hearing aids
