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发明名称
Dispositifs du type non mécaniques pour le contrôle de la réactance, applicables particulièrement aux systèmes de signalisation à haute fréquence
摘要
申请公布号
FR722059(A)
申请公布日期
1932.03.11
申请号
FRD722059
申请日期
1931.07.22
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H03L7/02
主分类号
H03L7/02
代理机构
代理人
主权项
地址
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