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发明名称
Akustischer Wandler
摘要
申请公布号
DE2038687(A1)
申请公布日期
1971.02.04
申请号
DE19702038687
申请日期
1970.07.28
申请人
N.V.PHILIPS' GLOEILAMPENFABRIEKEN
发明人
FRANK MITCHELL,RICHARD
分类号
H04R15/00;H04R17/00
主分类号
H04R15/00
代理机构
代理人
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地址
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