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发明名称
Improvements in adjustable reflectors for electric lamps
摘要
申请公布号
GB543663(A)
申请公布日期
1942.03.06
申请号
GB19400017236
申请日期
1940.12.04
申请人
ROBERT RICHARD HOARE
发明人
分类号
F21V7/16
主分类号
F21V7/16
代理机构
代理人
主权项
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