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发明名称
Perfectionnements aux systèmes pour la transmission de messages
摘要
申请公布号
FR938980(A)
申请公布日期
1948.10.29
申请号
FRD938980
申请日期
1946.02.06
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
DELORAINE ELMOND MAURICE;ROSA LOUIS ANTHONY DE
分类号
H04L21/00;H04N1/23
主分类号
H04L21/00
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代理人
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