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发明名称
Improvements in or relating to lighting fittings
摘要
申请公布号
GB508705(A)
申请公布日期
1939.07.05
申请号
GB19380001165
申请日期
1938.01.13
申请人
JOHN JAMES FENN;THE BENJAMIN ELECTRIC LIMITED
发明人
分类号
F21V17/00;F21V17/12
主分类号
F21V17/00
代理机构
代理人
主权项
地址
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