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经营范围
发明名称
Combination lamp and display device
摘要
申请公布号
US2141769(A)
申请公布日期
1938.12.27
申请号
US19370121034
申请日期
1937.01.18
申请人
SIMPSON ROBERT W
发明人
SIMPSON ROBERT W.
分类号
G09F19/00
主分类号
G09F19/00
代理机构
代理人
主权项
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