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发明名称
Système de signalisation
摘要
申请公布号
FR992818(A)
申请公布日期
1951.10.23
申请号
FRD992818
申请日期
1949.05.31
申请人
SADIR-CARPENTIER
发明人
CORNET PIERRE;BOISVIEUX JACQUES;BOUDIGUES ALEXANDRE
分类号
H04J3/12;H04W84/14
主分类号
H04J3/12
代理机构
代理人
主权项
地址
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