Improvements in lighting devices comprising an incandescent lamp mounted in a screw-fitting,申请号GB19400010880-传众专利搜索

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发明名称	Improvements in lighting devices comprising an incandescent lamp mounted in a screw-fitting
摘要
申请公布号	GB544038(A)	申请公布日期	1942.03.25
申请号	GB19400010880	申请日期	1940.06.25
申请人	N.V. PHILIPS' GLOEIL-AMPENFABRIEKEN	发明人
分类号	B60Q1/26	主分类号	B60Q1/26
代理机构		代理人
主权项
地址

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