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发明名称
Appareil réunissant dans une même boîte le capteur d'ondes et le reproducteur de sons
摘要
申请公布号
FR690350(A)
申请公布日期
1930.09.18
申请号
FRD690350
申请日期
1930.02.21
申请人
ETABLISSEMENTS RADIO-SONORE ET LARRET
发明人
分类号
H04B1/08
主分类号
H04B1/08
代理机构
代理人
主权项
地址
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