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发明名称
Dispositif permettant l'échange simultané de signalisations de courant de plusieurs stations entre elles
摘要
申请公布号
FR731267(A)
申请公布日期
1932.08.31
申请号
FRD731267
申请日期
1932.02.11
申请人
ALLGEMEINE ELEKTRICITATS-GESELLSCHAFT
发明人
分类号
H02J13/00
主分类号
H02J13/00
代理机构
代理人
主权项
地址
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