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发明名称
Improvements in directional lighting fittings
摘要
申请公布号
GB507688(A)
申请公布日期
1939.06.20
申请号
GB19380007390
申请日期
1938.03.09
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;STANLEY SUTTON BEGGS
发明人
分类号
F21V5/00
主分类号
F21V5/00
代理机构
代理人
主权项
地址
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