Improvements in optical reflectors for signalling and other purposes,申请号GB19290029077-传众专利搜索

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发明名称	Improvements in optical reflectors for signalling and other purposes
摘要
申请公布号	GB332134(A)	申请公布日期	1930.07.17
申请号	GB19290029077	申请日期	1929.09.25
申请人	JAMES WILLIAM PUNTER;GEORGES AVRIL	发明人
分类号	G02B5/12	主分类号	G02B5/12
代理机构		代理人
主权项
地址

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