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发明名称
Improvements in hoardings and other like structures
摘要
申请公布号
GB339810(A)
申请公布日期
1930.12.18
申请号
GB19290039322
申请日期
1929.12.23
申请人
CHARLES RAYMOND HENRY SMITH
发明人
分类号
G09F15/00
主分类号
G09F15/00
代理机构
代理人
主权项
地址
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