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发明名称
Luminous sign
摘要
申请公布号
US1887534(A)
申请公布日期
1932.11.15
申请号
US19300497643
申请日期
1930.11.24
申请人
WOLD EDWARD S
发明人
WOLD EDWARD S.
分类号
G09F13/04
主分类号
G09F13/04
代理机构
代理人
主权项
地址
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