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发明名称
Method of providing original light effects by a mechanical advertising device
摘要
申请公布号
US2265355(A)
申请公布日期
1941.12.09
申请号
US19380225832
申请日期
1938.08.19
申请人
VICTOR DAVID
发明人
DAVID VICTOR
分类号
G09F11/23
主分类号
G09F11/23
代理机构
代理人
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