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发明名称
Optical systems for the display of goods and other purposes
摘要
申请公布号
GB381548(A)
申请公布日期
1932.09.26
申请号
GB19310018542
申请日期
1931.06.26
申请人
SAMUEL SUMMERSON
发明人
分类号
F21S11/00
主分类号
F21S11/00
代理机构
代理人
主权项
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