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发明名称
Illuminating device
摘要
申请公布号
US1780373(A)
申请公布日期
1930.11.04
申请号
US19280254472
申请日期
1928.02.15
申请人
WILLIAM BEUTTELL ALFRED
发明人
BEUTTELL ALFRED WILLIAM
分类号
G09F13/14
主分类号
G09F13/14
代理机构
代理人
主权项
地址
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