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发明名称
Improvements in apparatus for directional illumination
摘要
申请公布号
GB462056(A)
申请公布日期
1937.03.02
申请号
GB19350025984
申请日期
1935.09.19
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;STANLEY SUTTON BEGGS
发明人
分类号
F21S8/00;F21V13/04
主分类号
F21S8/00
代理机构
代理人
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