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发明名称
Improvements in and relating to electric lamps and in methods of manufacturing the same
摘要
申请公布号
GB501111(A)
申请公布日期
1939.02.21
申请号
GB19380018447
申请日期
1938.06.21
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED
发明人
分类号
H01K3/20
主分类号
H01K3/20
代理机构
代理人
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地址
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