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发明名称
Display device
摘要
申请公布号
US2158343(A)
申请公布日期
1939.05.16
申请号
US19380184141
申请日期
1938.01.10
申请人
WAGNER SIGN SERVICE INCORPORATED
发明人
WAGNER ERWIN
分类号
G09F13/00
主分类号
G09F13/00
代理机构
代理人
主权项
地址
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