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发明名称
Knock-down display device
摘要
申请公布号
US2118848(A)
申请公布日期
1938.05.31
申请号
US19360086907
申请日期
1936.06.24
申请人
EINSON-FREEMAN CO., INC.
发明人
LEIGH NATHAN JOSEPH
分类号
G09F1/06
主分类号
G09F1/06
代理机构
代理人
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地址
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