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经营范围
发明名称
Systèmes de communication et de signalisation
摘要
申请公布号
FR952270(A)
申请公布日期
1949.11.14
申请号
FRD952270
申请日期
1947.08.22
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
LABIN EMILE;GRIEG DONALD DAVID
分类号
H04Q1/442
主分类号
H04Q1/442
代理机构
代理人
主权项
地址
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