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经营范围
发明名称
Improvements in and relating to lighting fittings
摘要
申请公布号
GB697728(A)
申请公布日期
1953.09.30
申请号
GB19500007323
申请日期
1950.03.23
申请人
NORMAN WILLIAM HARDING
发明人
分类号
F21V11/06
主分类号
F21V11/06
代理机构
代理人
主权项
地址
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