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经营范围
发明名称
Dispositif indicateur pour appartements, etc.
摘要
申请公布号
FR828586(A)
申请公布日期
1938.05.20
申请号
FRD828586
申请日期
1937.11.02
申请人
发明人
BERGER DAVID
分类号
G09F11/02
主分类号
G09F11/02
代理机构
代理人
主权项
地址
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