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发明名称
ELEKTROAKUSTISCHER WANDLER MIT EINER TRENNWAND UND EINER MASKENWAND
摘要
申请公布号
ATA41993(A)
申请公布日期
1995.08.15
申请号
AT19930000004
申请日期
1993.03.04
申请人
PHILIPS ELECTRONICS N.V.
发明人
FRASL EWALD
分类号
H04R1/28;H04R1/22;H04R9/02;(IPC1-7):H04R11/00
主分类号
H04R1/28
代理机构
代理人
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