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发明名称
Improvements in or relating to lanterns for electric lamps
摘要
申请公布号
GB522955(A)
申请公布日期
1940.07.02
申请号
GB19380037075
申请日期
1938.12.20
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED;JOHN BERTRAM
发明人
分类号
F21S13/00
主分类号
F21S13/00
代理机构
代理人
主权项
地址
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