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经营范围
发明名称
Dispositif servant à alimenter des feux de signalisation par inversion de polarité
摘要
申请公布号
FR1036965(A)
申请公布日期
1953.09.14
申请号
FRD1036965
申请日期
1951.05.10
申请人
发明人
TARDY LOUIS-ALBERT-HUBERT
分类号
B61L5/18;G08C19/30
主分类号
B61L5/18
代理机构
代理人
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地址
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