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发明名称
Dispositif pour rendre des vibrations acoustiques audibles par induction électromagnétique
摘要
申请公布号
FR1101353(A)
申请公布日期
1955.10.05
申请号
FRD1101353
申请日期
1954.05.25
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04B5/00
主分类号
H04B5/00
代理机构
代理人
主权项
地址
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