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发明名称
Display device
摘要
申请公布号
US1747428(A)
申请公布日期
1930.02.18
申请号
US19290371182
申请日期
1929.06.15
申请人
FRANCIS CRAWFORD WILBUR
发明人
CRAWFORD WILBUR FRANCIS
分类号
A47F7/00
主分类号
A47F7/00
代理机构
代理人
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