Improvements in miners' safety lamps,申请号GB19360026339-传众专利搜索

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发明名称	Improvements in miners' safety lamps
摘要
申请公布号	GB482584(A)	申请公布日期	1938.03.29
申请号	GB19360026339	申请日期	1936.09.29
申请人	ERNEST ARTHUR HAILWOOD	发明人
分类号	F21L23/00	主分类号	F21L23/00
代理机构		代理人
主权项
地址

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