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发明名称
Procédé et appareil pour la transformation de modulations électriques en modulations vibratoires d'un fluide et inversement
摘要
申请公布号
FR62292(E)
申请公布日期
1955.06.13
申请号
FRD62292
申请日期
1951.12.27
申请人
发明人
KLEIN SIEGFRIED
分类号
H04R23/00
主分类号
H04R23/00
代理机构
代理人
主权项
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