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发明名称
Appareil émetteur d'impulsions pour réaliser les liaisons en téléphonie automatique
摘要
申请公布号
FR724484(A)
申请公布日期
1932.04.27
申请号
FRD724484
申请日期
1931.10.14
申请人
发明人
BOYE ALFRED
分类号
H04M1/56
主分类号
H04M1/56
代理机构
代理人
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