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经营范围
发明名称
Improvements in flash-light lamps
摘要
申请公布号
GB659332(A)
申请公布日期
1951.10.17
申请号
GB19490008915
申请日期
1949.04.01
申请人
PHILIPS ELECTRICAL LIMITED
发明人
分类号
F21K5/08
主分类号
F21K5/08
代理机构
代理人
主权项
地址
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