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发明名称
Improvements relating to illuminated display devices
摘要
申请公布号
GB590333(A)
申请公布日期
1947.07.15
申请号
GB19440014612
申请日期
1944.07.31
申请人
GENERAL SIGNAL AND TIME SYSTEMS, LIMITED;JOHANNES REINHOLD BLUM
发明人
分类号
G09F13/00
主分类号
G09F13/00
代理机构
代理人
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地址
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