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发明名称
HEARING AID
摘要
申请公布号
EP0734638(A1)
申请公布日期
1996.10.02
申请号
EP19950905433
申请日期
1994.12.14
申请人
HILL, FRANK C.
发明人
HILL, FRANK C.
分类号
H04R25/00;(IPC1-7):H04R25/00
主分类号
H04R25/00
代理机构
代理人
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