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经营范围
发明名称
Improvements in or relating to electric lamps
摘要
申请公布号
GB493944(A)
申请公布日期
1938.10.17
申请号
GB19370007726
申请日期
1937.03.16
申请人
CHARLES OSWALD LOCKEY
发明人
分类号
F21S8/10
主分类号
F21S8/10
代理机构
代理人
主权项
地址
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