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经营范围
发明名称
Perfectionnements aux signaux lumineux
摘要
申请公布号
FR49822(E)
申请公布日期
1939.08.08
申请号
FRD49822
申请日期
1938.03.14
申请人
COMPAGNIE DE SIGNAUX ET D'ENTREPRISES ELECTRIQUES
发明人
分类号
H01K1/28
主分类号
H01K1/28
代理机构
代理人
主权项
地址
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