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发明名称
MEMBRAN FUER EINEN ELEKTROAKUSTISCHEN WANDLER MIT UNSTETIGER AENDERUNG DES OEFFNUNGSWINKELS ZWECKS ANPASSUNG AN DIE GEHOERFUNKTION
摘要
申请公布号
ATA215390(A)
申请公布日期
1993.04.15
申请号
AT19900002153
申请日期
1990.10.25
申请人
ENNEMOSER DIETER
发明人
分类号
H04R7/12;(IPC1-7):H04R7/14
主分类号
H04R7/12
代理机构
代理人
主权项
地址
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