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发明名称
HEARING AID WITH FILTER CIRCUIT
摘要
申请公布号
EP0485357(A3)
申请公布日期
1993.01.13
申请号
EP19910890266
申请日期
1991.11.06
申请人
VIENNATONE GESELLSCHAFT M.B.H.
发明人
RIBIC, ZLATAN, DIPL.-ING. DR.
分类号
H04R25/00;(IPC1-7):H04R25/00
主分类号
H04R25/00
代理机构
代理人
主权项
地址
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