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发明名称
Improvements in electric lanterns embodying light diffusing screens
摘要
申请公布号
GB922446(A)
申请公布日期
1963.04.03
申请号
GB19610037562
申请日期
1961.10.19
申请人
LICENTIA PATENT - VERWALTUNGS G.M.B.H.
发明人
分类号
F21V17/16
主分类号
F21V17/16
代理机构
代理人
主权项
地址
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