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经营范围
发明名称
Improvements relating to lamps
摘要
申请公布号
GB488472(A)
申请公布日期
1938.07.07
申请号
GB19370033504
申请日期
1937.12.03
申请人
BIKKER'S POLYTECHNISCH BUREAU EN HANDELMAATSCHAPPIJ N.V.
发明人
分类号
F21V11/00;F21V11/08;F21V14/08
主分类号
F21V11/00
代理机构
代理人
主权项
地址
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