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发明名称
VERSTAERKEREINRICHTUNG FUER SCHWERHOERIGENSCHULUNG
摘要
申请公布号
DE2605453(A1)
申请公布日期
1977.08.18
申请号
DE19762605453
申请日期
1976.02.12
申请人
PHILIPS PATENTVERWALTUNG GMBH
发明人
BICK-SANDER,WINFRIED;VOSS,RAINER,ING.
分类号
G09B21/00;A61B5/12;H03G1/00;H03G7/00;H03G9/00;H04R25/00;(IPC1-7):H04R27/02
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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