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发明名称
Improvements in or relating to advertisement or like projectors
摘要
申请公布号
GB726092(A)
申请公布日期
1955.03.16
申请号
GB19530006088
申请日期
1954.07.30
申请人
THOMAS ARTHUR PARKER
发明人
分类号
G09F13/00
主分类号
G09F13/00
代理机构
代理人
主权项
地址
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