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发明名称
Dispositif de transformation des vibrations mécaniques en oscillations électriquesou inversement, et élément de flexion ou de torsion approprié à ce dispositif
摘要
申请公布号
FR936736(A)
申请公布日期
1948.07.28
申请号
FRD936736
申请日期
1946.08.05
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04R17/04
主分类号
H04R17/04
代理机构
代理人
主权项
地址
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