Improvements in shades for electric lamps,申请号GB19550027575-传众专利搜索

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发明名称	Improvements in shades for electric lamps
摘要
申请公布号	GB799975(A)	申请公布日期	1958.08.13
申请号	GB19550027575	申请日期	1955.09.28
申请人	WILFRID L. SPENCE	发明人
分类号	F21V11/00	主分类号	F21V11/00
代理机构		代理人
主权项
地址

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