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发明名称
Convertisseur électro-acoustique
摘要
申请公布号
FR1527032(A)
申请公布日期
1968.05.31
申请号
FR19671321817
申请日期
1967.04.03
申请人
发明人
PENNA MARIUS
分类号
H04R1/28;H04R3/04
主分类号
H04R1/28
代理机构
代理人
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地址
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