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经营范围
发明名称
Improvements in or relating to electric lamp fittings
摘要
申请公布号
GB607934(A)
申请公布日期
1948.09.07
申请号
GB19470006080
申请日期
1947.03.04
申请人
CORNERCROFT LIMITED;NORMAN RYCROFT
发明人
分类号
F21V19/00;F21V21/30
主分类号
F21V19/00
代理机构
代理人
主权项
地址
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