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发明名称
HEARING AID
摘要
申请公布号
DE3471227(D1)
申请公布日期
1988.06.16
申请号
DE19843471227
申请日期
1984.06.14
申请人
SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUNCHEN
发明人
HENNEBERGER, HANS
分类号
H04R25/02;(IPC1-7):H04R25/02
主分类号
H04R25/02
代理机构
代理人
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