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发明名称
METHOD AND APPARATUS FOR INCREASING THE SOUND OUTPUT OF AN ACOUSTIC TRANSDUCER
摘要
申请公布号
US3584160(A)
申请公布日期
1971.06.08
申请号
USD3584160
申请日期
1969.02.17
申请人
COMPAGNIE DES COMPTEURS
发明人
SYLVAIN JEAN JANSSEN
分类号
G10K11/02;(IPC1-7):H04R15/00
主分类号
G10K11/02
代理机构
代理人
主权项
地址
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