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经营范围
发明名称
Plaques à effets luminescents
摘要
申请公布号
FR852744(A)
申请公布日期
1940.03.01
申请号
FRD852744
申请日期
1939.04.06
申请人
发明人
JACOBS CHARLES
分类号
G09F13/20
主分类号
G09F13/20
代理机构
代理人
主权项
地址
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