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发明名称
ADVERTISING DISPLAY DEVICE
摘要
申请公布号
GB1519840(A)
申请公布日期
1978.08.02
申请号
GB19750046061
申请日期
1975.11.06
申请人
LEO D W
发明人
分类号
G09F7/22;G09F11/23;(IPC1-7):G09F11/23;F16C32/04
主分类号
G09F7/22
代理机构
代理人
主权项
地址
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