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发明名称
Improvements in or relating to lampshades
摘要
申请公布号
GB611477(A)
申请公布日期
1948.10.29
申请号
GB19460013228
申请日期
1946.05.01
申请人
LOUIS WILLIAM JOHNSTONE
发明人
分类号
F21V1/00
主分类号
F21V1/00
代理机构
代理人
主权项
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