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发明名称
Akustisches Gerät zur Unterstützung des menschlichen Hörorgans beim Abhören von Lautsprecherschallquellen
摘要
申请公布号
DE29700688(U1)
申请公布日期
1997.06.12
申请号
DE19972000688U
申请日期
1997.01.16
申请人
SCHNEIDER, JUERGEN MATTHIAS, 34131 KASSEL, DE
发明人
分类号
H04R5/033;(IPC1-7):H04R5/033;H04R1/10
主分类号
H04R5/033
代理机构
代理人
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