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发明名称
Improvements relating to electric lamps
摘要
申请公布号
GB640559(A)
申请公布日期
1950.07.19
申请号
GB19480014634
申请日期
1948.05.31
申请人
JOSEPH LUCAS LIMITED
发明人
FLAY JAMES REGINALD
分类号
F21V19/00
主分类号
F21V19/00
代理机构
代理人
主权项
地址
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