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发明名称
Appareil télégraphique à dispositif d'émission à clavier
摘要
申请公布号
FR842020(A)
申请公布日期
1939.06.05
申请号
FRD842020
申请日期
1938.08.12
申请人
FIDES
发明人
分类号
H04L13/16
主分类号
H04L13/16
代理机构
代理人
主权项
地址
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