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经营范围
发明名称
Système de tableau d'affichage de cours de marchandises et autres
摘要
申请公布号
FR730413(A)
申请公布日期
1932.08.12
申请号
FRD730413
申请日期
1931.12.28
申请人
INTERNATIONAL COMMUNICATIONS LABORATORIES INC.
发明人
分类号
H04L12/18
主分类号
H04L12/18
代理机构
代理人
主权项
地址
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