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发明名称
Procédé de reproduction électro-acoustique de vibrations
摘要
申请公布号
FR731078(A)
申请公布日期
1932.08.29
申请号
FRD731078
申请日期
1932.02.05
申请人
发明人
ARDENNE MANFRED VON
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
主权项
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